cat ( 1 ) USER COMMANDScat ( 1 )

NAME

cat - concatenate files

SYNOPSIS

cat [ options ] [file ...]

DESCRIPTION

cat copies each file in sequence to the standard output. If no file is given, or if the file is -, cat copies from standard input starting at the current location.

OPTIONS

-b, --number-nonblank
Number lines as with -n but omit line numbers from blank lines.
-d, --dos-input
Input files are opened in textmode which removes carriage returns in front of new-lines on some systems.
-e
Equivalent to -vE.
-n, --number
Causes a line number to be inserted at the beginning of each line.
-s
Equivalent to -S for att universe and -B otherwise.
-t
Equivalent to -vT.
-u, --unbuffer
The output is not delayed by buffering.
-v, --show-nonprinting
Causes non-printing characters (whith the exception of tabs, new-lines, and form-feeds) to be output as printable charater sequences. ASCII control characters are printed as ^n, where n is the corresponding ASCII character in the range octal 100-137. The DEL character (octal 0177) is copied as ^?. Other non-printable characters are copied as M-x where x is the ASCII character specified by the low-order seven bits. Multibyte characters in the current locale are treated as printable characters.
-A, --show-all
Equivalent to -vET.
-B, --squeeze-blank
Multiple adjacent new-line characters are replace by one new-line.
-D, --dos-output
Output files are opened in textmode which inserts carriage returns in front of new-lines on some systems.
-E, --show-ends
Causes a $ to be inserted before each new-line.
-S, --silent
cat is silent about non-existent files.
-T, --show-blank
Causes tabs to be copied as ^I and formfeeds as ^L.

SEE ALSO

cp(1), getconf(1), pr(1)

IMPLEMENTATION

version
cat (AT&T Research) 2007-07-17
author
Glenn Fowler <gsf@research.att.com>
author
David Korn <dgk@research.att.com>
copyright
Copyright © 1992-2008 AT&T Intellectual Property
license
http://www.opensource.org/licenses/cpl1.0.txt