cat man page

cat — concatenate files and print on the standard output


cat {{file}}

cat {{file1}} {{file2}} > {{target_file}}

cat {{file1}} {{file2}} >> {{target_file}}

cat -n {{file}}


cat [OPTION]... [FILE]...


Concatenate FILE(s) to standard output.

With no FILE, or when FILE is -, read standard input.

-A, --show-all
equivalent to -vET
-b, --number-nonblank
number nonempty output lines, overrides -n
equivalent to -vE
-E, --show-ends
display $ at end of each line
-n, --number
number all output lines
-s, --squeeze-blank
suppress repeated empty output lines
equivalent to -vT
-T, --show-tabs
display TAB characters as ^I
-v, --show-nonprinting
use ^ and M- notation, except for LFD and TAB
display this help and exit
output version information and exit


cat f - g
Output f's contents, then standard input, then g's contents.
Copy standard input to standard output.


Written by Torbjorn Granlund and Richard M. Stallman.

Reporting Bugs

GNU coreutils online help: <>
Report cat translation bugs to <>

See Also


Full documentation at: <…>
or available locally via: info '(coreutils) cat invocation'

Referenced By

bidiv(1), catdoc(1), catppt(1), console(1), cpuset(7), devio(1), fetchlog(1), foomatic-rip(1), gio(1), groffer(1), iftab(5), kcc(1), ksh(1), lz4(1), memcat(1), mksh(1), oggz-merge(1), perltie(1), petcat(1), pipebench(1), pmlogrewrite(1), proc(5), pv(1), sipcalc(1), srec_examples(1), systemd-socket-activate(1), text-vimcolor(1), ul(1), xcf2png(1), xcf2pnm(1), xcfinfo(1), xcfview(1), xls2csv(1), xmessage(1), xz(1).

November 2016 GNU coreutils 8.26 User Commands