cat(1) — Linux manual page

CAT(1)                        User Commands                        CAT(1)

NAME         top

       cat - concatenate files and print on the standard output

SYNOPSIS         top

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

DESCRIPTION         top

       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

       -e     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

       -t     equivalent to -vT

       -T, --show-tabs
              display TAB characters as ^I

       -u     (ignored)

       -v, --show-nonprinting
              use ^ and M- notation, except for LFD and TAB

       --help display this help and exit

       --version
              output version information and exit

EXAMPLES         top

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

       cat    Copy standard input to standard output.

AUTHOR         top

       Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS         top

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

COPYRIGHT         top

       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.

SEE ALSO         top

       tac(1)

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

COLOPHON         top

       This page is part of the coreutils (basic file, shell and text
       manipulation utilities) project.  Information about the project
       can be found at ⟨http://www.gnu.org/software/coreutils/⟩.  If you
       have a bug report for this manual page, see
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GNU coreutils 9.7               April 2025                         CAT(1)

Pages that refer to this page: pmlogrewrite(1),  pv(1),  systemd-socket-activate(1),  tac(1),  ul(1),  proc(5),  proc_pid_net(5),  proc_scsi(5),  cpuset(7),  time_namespaces(7),  readprofile(8)

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