Man page - cat(1)

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Manual

CAT(1) User Commands CAT(1)

cat - concatenate files and print on the standard output

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

Concatenate FILE(s) to standard output.

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

equivalent to -vET
number nonempty output lines, overrides -n
equivalent to -vE
display $ at end of each line
number all output lines
suppress repeated empty output lines
equivalent to -vT
display TAB characters as ^I
(ignored)
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.

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>

tac(1)

Full documentation <https://www.gnu.org/software/coreutils/cat>
or available locally via: info '(coreutils) cat invocation'

Packaged by Debian (9.7-3)
Copyright © 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

June 2025 GNU coreutils 9.7