shuf man page

shuf — generate random permutations

TL;DR

shuf {{filename}}

shuf -n {{n}} {{filename}}

shuf -o {{another_filename}} {{filename}}

shuf -i {{low}}-{{high}}

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.

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

Author

Written by Paul Eggert.

Reporting Bugs

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

See Also

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

Referenced By

sort(1).

September 2017 GNU coreutils 8.28 User Commands