shuf(1) - Linux man page

Name

shuf - generate random permutations

Synopsis

shuf [OPTION]... [FILE]
shuf -e [OPTION]... [ARG]...
shuf -i LO-HI [OPTION]...

Description

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

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
-z, --zero-terminated: end lines with 0 byte, not newline
--help: display this help and exit
--version: output version information and exit

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

Author

Written by Paul Eggert.

Reporting Bugs

Report shuf bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report shuf translation bugs to <http://translationproject.org/team/>

Copyright

Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.