Import NetBSD cat(1)
This commit is contained in:
Andy Kosela
Ben Gras
parent
7e81b07cc5
commit
24f1e18846
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@ -2,6 +2,6 @@
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.include <bsd.own.mk>
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SUBDIR= date ed mkdir rm rmdir
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SUBDIR= cat date ed mkdir rm rmdir
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.include <bsd.subdir.mk>
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6
bin/cat/Makefile
Normal file
6
bin/cat/Makefile
Normal file
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@ -0,0 +1,6 @@
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# $NetBSD: Makefile,v 1.12 2003/05/18 07:57:31 lukem Exp $
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# @(#)Makefile 8.1 (Berkeley) 5/31/93
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PROG= cat
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.include <bsd.prog.mk>
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209
bin/cat/cat.1
Normal file
209
bin/cat/cat.1
Normal file
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@ -0,0 +1,209 @@
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.\" $NetBSD: cat.1,v 1.32 2006/09/23 11:24:44 wiz Exp $
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.\"
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.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)cat.1 8.3 (Berkeley) 5/2/95
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.\"
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.Dd September 23, 2006
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.Dt CAT 1
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.Os
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.Sh NAME
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.Nm cat
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.Nd concatenate and print files
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.Sh SYNOPSIS
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.Nm
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.Op Fl beflnstuv
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.Op Fl
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.Op Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility reads files sequentially, writing them to the standard output.
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The
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.Ar file
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operands are processed in command line order.
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A single dash represents the standard input,
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and may appear multiple times in the
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.Ar file
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list.
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.Pp
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The word
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.Dq concatenate
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is just a verbose synonym for
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.Dq catenate .
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl b
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Implies the
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.Fl n
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option but doesn't number blank lines.
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.It Fl e
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Implies the
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.Fl v
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option, and displays a dollar sign
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.Pq Ql \&$
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at the end of each line
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as well.
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.It Fl f
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Only attempt to display regular files.
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.It Fl l
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Set an exclusive advisory lock on the standard output file descriptor.
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This lock is set using
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.Xr fcntl 2
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with the
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.Dv F_SETLKW
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command.
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If the output file is already locked,
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.Nm
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will block until the lock is acquired.
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.It Fl n
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Number the output lines, starting at 1.
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.It Fl s
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Squeeze multiple adjacent empty lines, causing the output to be
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single spaced.
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.It Fl t
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Implies the
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.Fl v
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option, and displays tab characters as
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.Ql ^I
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as well.
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.It Fl u
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The
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.Fl u
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option guarantees that the output is unbuffered.
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.It Fl v
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Displays non-printing characters so they are visible.
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Control characters print as
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.Ql ^X
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for control-X; the delete
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character (octal 0177) prints as
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.Ql ^? .
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Non-ascii characters (with the high bit set) are printed as
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.Ql M-
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(for meta) followed by the character for the low 7 bits.
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.El
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.Sh EXIT STATUS
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The
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.Nm
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utility exits 0 on success, and \*[Gt]0 if an error occurs.
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.Sh EXAMPLES
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The command:
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.Bd -literal -offset indent
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.Ic cat file1
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.Ed
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.Pp
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will print the contents of
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.Ar file1
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to the standard output.
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.Pp
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The command:
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.Bd -literal -offset indent
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.Ic cat file1 file2 \*[Gt] file3
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.Ed
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.Pp
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will sequentially print the contents of
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.Ar file1
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and
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.Ar file2
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to the file
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.Ar file3 ,
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truncating
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.Ar file3
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if it already exists.
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See the manual page for your shell (i.e.,
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.Xr sh 1 )
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for more information on redirection.
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.Pp
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The command:
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.Bd -literal -offset indent
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.Ic cat file1 - file2 - file3
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.Ed
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.Pp
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will print the contents of
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.Ar file1 ,
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print data it receives from the standard input until it receives an
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.Dv EOF
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.Pq Sq ^D
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character, print the contents of
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.Ar file2 ,
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read and output contents of the standard input again, then finally output
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the contents of
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.Ar file3 .
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Note that if the standard input referred to a file, the second dash
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on the command-line would have no effect, since the entire contents of the file
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would have already been read and printed by
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.Nm
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when it encountered the first
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.Ql \&-
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operand.
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.Sh SEE ALSO
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.Xr head 1 ,
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.Xr hexdump 1 ,
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.Xr lpr 1 ,
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.Xr more 1 ,
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.Xr pr 1 ,
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.Xr tail 1 ,
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.Xr view 1 ,
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.Xr vis 1 ,
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.Xr fcntl 2
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.Rs
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.%A Rob Pike
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.%T "UNIX Style, or cat -v Considered Harmful"
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.%J "USENIX Summer Conference Proceedings"
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.%D 1983
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.Re
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.Sh STANDARDS
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The
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.Nm
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utility is expected to conform to the
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.St -p1003.2-92
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specification.
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.Pp
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The flags
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.Op Fl belnstv
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are extensions to the specification.
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.Sh HISTORY
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A
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.Nm
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utility appeared in
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.At v1 .
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Dennis Ritchie designed and wrote the first man page.
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It appears to have been
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.Xr cat 1 .
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.Sh BUGS
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Because of the shell language mechanism used to perform output
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redirection, the command
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.Dq Li cat file1 file2 \*[Gt] file1
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will cause the original data in file1 to be destroyed!
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This is performed by the shell before
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.Nm
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is run.
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316
bin/cat/cat.c
Normal file
316
bin/cat/cat.c
Normal file
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@ -0,0 +1,316 @@
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/* $NetBSD: cat.c,v 1.47 2008/07/20 00:52:39 lukem Exp $ */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kevin Fall.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
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* 3. Neither the name of the University nor the names of its contributors
|
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#if !defined(lint)
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__COPYRIGHT(
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"@(#) Copyright (c) 1989, 1993\
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The Regents of the University of California. All rights reserved.");
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#if 0
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static char sccsid[] = "@(#)cat.c 8.2 (Berkeley) 4/27/95";
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#else
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__RCSID("$NetBSD: cat.c,v 1.47 2008/07/20 00:52:39 lukem Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int bflag, eflag, fflag, lflag, nflag, sflag, tflag, vflag;
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int rval;
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const char *filename;
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int main(int, char *[]);
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void cook_args(char *argv[]);
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void cook_buf(FILE *);
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void raw_args(char *argv[]);
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void raw_cat(int);
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int
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main(int argc, char *argv[])
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{
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int ch;
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struct flock stdout_lock;
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setprogname(argv[0]);
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(void)setlocale(LC_ALL, "");
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while ((ch = getopt(argc, argv, "beflnstuv")) != -1)
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switch (ch) {
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case 'b':
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bflag = nflag = 1; /* -b implies -n */
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break;
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case 'e':
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eflag = vflag = 1; /* -e implies -v */
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break;
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case 'f':
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fflag = 1;
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break;
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case 'l':
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lflag = 1;
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break;
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case 'n':
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nflag = 1;
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break;
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case 's':
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sflag = 1;
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break;
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case 't':
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tflag = vflag = 1; /* -t implies -v */
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break;
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case 'u':
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setbuf(stdout, NULL);
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break;
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case 'v':
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vflag = 1;
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break;
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default:
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case '?':
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(void)fprintf(stderr,
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"usage: cat [-beflnstuv] [-] [file ...]\n");
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exit(EXIT_FAILURE);
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/* NOTREACHED */
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}
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argv += optind;
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|
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if (lflag) {
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stdout_lock.l_len = 0;
|
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stdout_lock.l_start = 0;
|
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stdout_lock.l_type = F_WRLCK;
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stdout_lock.l_whence = SEEK_SET;
|
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if (fcntl(STDOUT_FILENO, F_SETLKW, &stdout_lock) == -1)
|
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err(EXIT_FAILURE, "stdout");
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}
|
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|
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if (bflag || eflag || nflag || sflag || tflag || vflag)
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cook_args(argv);
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else
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raw_args(argv);
|
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if (fclose(stdout))
|
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err(EXIT_FAILURE, "stdout");
|
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return (rval);
|
||||
}
|
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|
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void
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cook_args(char **argv)
|
||||
{
|
||||
FILE *fp;
|
||||
|
||||
fp = stdin;
|
||||
filename = "stdin";
|
||||
do {
|
||||
if (*argv) {
|
||||
if (!strcmp(*argv, "-"))
|
||||
fp = stdin;
|
||||
else if ((fp = fopen(*argv,
|
||||
fflag ? "rf" : "r")) == NULL) {
|
||||
warn("%s", *argv);
|
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rval = EXIT_FAILURE;
|
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++argv;
|
||||
continue;
|
||||
}
|
||||
filename = *argv++;
|
||||
}
|
||||
cook_buf(fp);
|
||||
if (fp != stdin)
|
||||
(void)fclose(fp);
|
||||
else
|
||||
clearerr(fp);
|
||||
} while (*argv);
|
||||
}
|
||||
|
||||
void
|
||||
cook_buf(FILE *fp)
|
||||
{
|
||||
int ch, gobble, line, prev;
|
||||
|
||||
line = gobble = 0;
|
||||
for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) {
|
||||
if (prev == '\n') {
|
||||
if (ch == '\n') {
|
||||
if (sflag) {
|
||||
if (!gobble && nflag && !bflag)
|
||||
(void)fprintf(stdout,
|
||||
"%6d\t\n", ++line);
|
||||
else if (!gobble && putchar(ch) == EOF)
|
||||
break;
|
||||
gobble = 1;
|
||||
continue;
|
||||
}
|
||||
if (nflag) {
|
||||
if (!bflag) {
|
||||
(void)fprintf(stdout,
|
||||
"%6d\t", ++line);
|
||||
if (ferror(stdout))
|
||||
break;
|
||||
} else if (eflag) {
|
||||
(void)fprintf(stdout,
|
||||
"%6s\t", "");
|
||||
if (ferror(stdout))
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else if (nflag) {
|
||||
(void)fprintf(stdout, "%6d\t", ++line);
|
||||
if (ferror(stdout))
|
||||
break;
|
||||
}
|
||||
}
|
||||
gobble = 0;
|
||||
if (ch == '\n') {
|
||||
if (eflag)
|
||||
if (putchar('$') == EOF)
|
||||
break;
|
||||
} else if (ch == '\t') {
|
||||
if (tflag) {
|
||||
if (putchar('^') == EOF || putchar('I') == EOF)
|
||||
break;
|
||||
continue;
|
||||
}
|
||||
} else if (vflag) {
|
||||
if (!isascii(ch)) {
|
||||
if (putchar('M') == EOF || putchar('-') == EOF)
|
||||
break;
|
||||
ch = toascii(ch);
|
||||
}
|
||||
if (iscntrl(ch)) {
|
||||
if (putchar('^') == EOF ||
|
||||
putchar(ch == '\177' ? '?' :
|
||||
ch | 0100) == EOF)
|
||||
break;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (putchar(ch) == EOF)
|
||||
break;
|
||||
}
|
||||
if (ferror(fp)) {
|
||||
warn("%s", filename);
|
||||
rval = EXIT_FAILURE;
|
||||
clearerr(fp);
|
||||
}
|
||||
if (ferror(stdout))
|
||||
err(EXIT_FAILURE, "stdout");
|
||||
}
|
||||
|
||||
void
|
||||
raw_args(char **argv)
|
||||
{
|
||||
int fd;
|
||||
|
||||
fd = fileno(stdin);
|
||||
filename = "stdin";
|
||||
do {
|
||||
if (*argv) {
|
||||
if (!strcmp(*argv, "-"))
|
||||
fd = fileno(stdin);
|
||||
else if (fflag) {
|
||||
struct stat st;
|
||||
fd = open(*argv, O_RDONLY|O_NONBLOCK, 0);
|
||||
if (fd < 0)
|
||||
goto skip;
|
||||
|
||||
if (fstat(fd, &st) == -1) {
|
||||
close(fd);
|
||||
goto skip;
|
||||
}
|
||||
if (!S_ISREG(st.st_mode)) {
|
||||
close(fd);
|
||||
warnx("%s: not a regular file", *argv);
|
||||
goto skipnomsg;
|
||||
}
|
||||
}
|
||||
else if ((fd = open(*argv, O_RDONLY, 0)) < 0) {
|
||||
skip:
|
||||
warn("%s", *argv);
|
||||
skipnomsg:
|
||||
rval = EXIT_FAILURE;
|
||||
++argv;
|
||||
continue;
|
||||
}
|
||||
filename = *argv++;
|
||||
}
|
||||
raw_cat(fd);
|
||||
if (fd != fileno(stdin))
|
||||
(void)close(fd);
|
||||
} while (*argv);
|
||||
}
|
||||
|
||||
void
|
||||
raw_cat(int rfd)
|
||||
{
|
||||
static char *buf;
|
||||
static char fb_buf[BUFSIZ];
|
||||
static size_t bsize;
|
||||
|
||||
ssize_t nr, nw, off;
|
||||
int wfd;
|
||||
|
||||
wfd = fileno(stdout);
|
||||
if (buf == NULL) {
|
||||
struct stat sbuf;
|
||||
|
||||
if (fstat(wfd, &sbuf) == 0 &&
|
||||
sbuf.st_blksize > sizeof(fb_buf)) {
|
||||
bsize = sbuf.st_blksize;
|
||||
buf = malloc(bsize);
|
||||
}
|
||||
if (buf == NULL) {
|
||||
bsize = sizeof(fb_buf);
|
||||
buf = fb_buf;
|
||||
}
|
||||
}
|
||||
while ((nr = read(rfd, buf, bsize)) > 0)
|
||||
for (off = 0; nr; nr -= nw, off += nw)
|
||||
if ((nw = write(wfd, buf + off, (size_t)nr)) < 0)
|
||||
err(EXIT_FAILURE, "stdout");
|
||||
if (nr < 0) {
|
||||
warn("%s", filename);
|
||||
rval = EXIT_FAILURE;
|
||||
}
|
||||
}
|
||||
|
|
@ -5,7 +5,7 @@
|
|||
SUBDIR= add_route arp ash at awk \
|
||||
backup badblocks banner basename \
|
||||
btrace cal calendar \
|
||||
cat cawf cd cdprobe checkhier cpp \
|
||||
cawf cd cdprobe checkhier cpp \
|
||||
chmod chown chroot ci cksum cleantmp clear cmp co \
|
||||
comm compress cp crc cron crontab cut \
|
||||
dd decomp16 DESCRIBE dev2name devsize df dhcpd \
|
||||
|
|
|
|||
|
|
@ -1,5 +0,0 @@
|
|||
PROG= cat
|
||||
BINDIR= /bin
|
||||
MAN=
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
|
@ -1,137 +0,0 @@
|
|||
/* cat - concatenates files Author: Andy Tanenbaum */
|
||||
|
||||
/* 30 March 1990 - Slightly modified for efficiency by Norbert Schlenker. */
|
||||
/* 23 March 2002 - Proper error messages by Kees J. Bot. */
|
||||
|
||||
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <minix/minlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#define CHUNK_SIZE (2048 * sizeof(char *))
|
||||
|
||||
static int unbuffered;
|
||||
static char ibuf[CHUNK_SIZE];
|
||||
static char obuf[CHUNK_SIZE];
|
||||
static char *op = obuf;
|
||||
|
||||
static void copyout(const char *file, int fd);
|
||||
static void output(const char *buf, size_t count);
|
||||
static void report(const char *label);
|
||||
static void fatal(const char *label);
|
||||
|
||||
static char STDIN[] = "standard input";
|
||||
static char STDOUT[] = "standard output";
|
||||
|
||||
static int excode = 0;
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
int i, fd;
|
||||
|
||||
i = 1;
|
||||
while (i < argc && argv[i][0] == '-') {
|
||||
char *opt = argv[i] + 1;
|
||||
|
||||
if (opt[0] == 0) break; /* - */
|
||||
i++;
|
||||
if (opt[0] == '-' && opt[1] == 0) break; /* -- */
|
||||
|
||||
while (*opt != 0) switch (*opt++) {
|
||||
case 'u':
|
||||
unbuffered = 1;
|
||||
break;
|
||||
default:
|
||||
std_err("Usage: cat [-u] [file ...]\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
if (i >= argc) {
|
||||
copyout(STDIN, STDIN_FILENO);
|
||||
} else {
|
||||
while (i < argc) {
|
||||
char *file = argv[i++];
|
||||
|
||||
if (file[0] == '-' && file[1] == 0) {
|
||||
copyout(STDIN, STDIN_FILENO);
|
||||
} else {
|
||||
fd = open(file, O_RDONLY);
|
||||
if (fd < 0) {
|
||||
report(file);
|
||||
} else {
|
||||
copyout(file, fd);
|
||||
close(fd);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
output(obuf, (op - obuf));
|
||||
return(excode);
|
||||
}
|
||||
|
||||
static void copyout(const char *file, int fd)
|
||||
{
|
||||
int n;
|
||||
|
||||
while (1) {
|
||||
n = read(fd, ibuf, CHUNK_SIZE);
|
||||
if (n < 0) fatal(file);
|
||||
if (n == 0) return;
|
||||
if (unbuffered || (op == obuf && n == CHUNK_SIZE)) {
|
||||
output(ibuf, n);
|
||||
} else {
|
||||
int bytes_left;
|
||||
|
||||
bytes_left = &obuf[CHUNK_SIZE] - op;
|
||||
if (n <= bytes_left) {
|
||||
memcpy(op, ibuf, (size_t)n);
|
||||
op += n;
|
||||
} else {
|
||||
memcpy(op, ibuf, (size_t)bytes_left);
|
||||
output(obuf, CHUNK_SIZE);
|
||||
n -= bytes_left;
|
||||
memcpy(obuf, ibuf + bytes_left, (size_t)n);
|
||||
op = obuf + n;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void output(const char *buf, size_t count)
|
||||
{
|
||||
ssize_t n;
|
||||
|
||||
while (count > 0) {
|
||||
n = write(STDOUT_FILENO, buf, count);
|
||||
if (n <= 0) {
|
||||
if (n < 0) fatal(STDOUT);
|
||||
std_err("cat: standard output: EOF\n");
|
||||
exit(1);
|
||||
}
|
||||
buf += n;
|
||||
count -= n;
|
||||
}
|
||||
}
|
||||
|
||||
static void report(const char *label)
|
||||
{
|
||||
int e = errno;
|
||||
std_err("cat: ");
|
||||
std_err(label);
|
||||
std_err(": ");
|
||||
std_err(strerror(e));
|
||||
std_err("\n");
|
||||
excode = 1;
|
||||
}
|
||||
|
||||
static void fatal(const char *label)
|
||||
{
|
||||
report(label);
|
||||
exit(1);
|
||||
}
|
||||
|
|
@ -1,6 +1,6 @@
|
|||
MAN= ash.1 at.1 banner.1 basename.1 \
|
||||
bsfilt.1 cal.1 \
|
||||
calendar.1 cat.1 cawf.1 chgrp.1 \
|
||||
calendar.1 cawf.1 chgrp.1 \
|
||||
chmod.1 cksum.1 clear.1 cmp.1 comm.1 compress.1 \
|
||||
cp.1 crc.1 crontab.1 ctags.1 dd.1 dev2name.1 \
|
||||
df.1 dhrystone.1 dosdir.1 dosread.1 doswrite.1 \
|
||||
|
|
|
|||
|
|
@ -1,33 +0,0 @@
|
|||
.TH CAT 1
|
||||
.SH NAME
|
||||
cat \- concatenate files and write them to stdout
|
||||
.SH SYNOPSIS
|
||||
\fBcat\fR [\fB\-u\fR]\fR [\fIfile\fR] ...\fR
|
||||
.br
|
||||
.de FL
|
||||
.TP
|
||||
\\fB\\$1\\fR
|
||||
\\$2
|
||||
..
|
||||
.de EX
|
||||
.TP 20
|
||||
\\fB\\$1\\fR
|
||||
# \\$2
|
||||
..
|
||||
.SH OPTIONS
|
||||
.FL "\-u" "Unbuffered output"
|
||||
.SH EXAMPLES
|
||||
.EX "cat file" "Display file on the terminal"
|
||||
.EX "cat file1 file2 | lp" "Concatenate 2 files and print result"
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
.I Cat
|
||||
concatenates its input files and copies the result to \fIstdout\fR.
|
||||
If no input file is named, or \- is encountered as a file name, standard
|
||||
input is used.
|
||||
Output is buffered in 512 byte blocks unless the
|
||||
.B \-u
|
||||
flag is given.
|
||||
If you just want to copy a file, \fIcp\fR should be used since it is faster.
|
||||
.SH "SEE ALSO"
|
||||
.BR cp (1).
|
||||
|
|
@ -27,6 +27,7 @@
|
|||
2011/08/29 14:48:46,bin/rm
|
||||
2011/08/29 14:49:38,bin/rmdir
|
||||
2012/01/16 18:47:57,bin/ed
|
||||
2012/01/16 18:47:57,bin/cat
|
||||
2011/06/09 21:23:29,sbin/fsck
|
||||
2009/04/11 12:10:02,usr.bin/chpass
|
||||
2010/05/14 17:14:28,usr.bin/m4
|
||||
|
|
|
|||
Loading…
Reference in a new issue