shuf

Write a random permutation of the input lines to standard output.

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

Mandatory arguments to long options are mandatory for short options too.

-e, --echo

treat each ARG as an input line

-i, --input-range=LO-HI

treat each number LO through HI as an input line

-n, --head-count=COUNT

output at most COUNT lines

-o, --output=FILE

write result to FILE instead of standard output

--random-source=FILE

get random bytes from FILE

-r, --repeat

output lines can be repeated

-z, --zero-terminated

line delimiter is NUL, not newline

--help

display this help and exit

--version

output version information and exit

Written by Paul Eggert.

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

Full documentation https://www.gnu.org/software/coreutils/shuf
or available locally via: info '(coreutils) shuf 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.