shuf − generate random permutations
shuf -e [OPTION]... [ARG]...
shuf -i LO-HI [OPTION]...
Write a random permutation of the input lines to standard output.
With no FILE, or when FILE is −, read standard input.
arguments to long options are mandatory for short options
treat each ARG as an input line
treat each number LO through HI as an input line
output at most COUNT lines
write result to FILE instead of standard output
get random bytes from FILE
output lines can be repeated
line delimiter is NUL, not newline
display this help and exit
output version information and exit
Written by Paul Eggert.
© 2018 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
or available locally via: info '(coreutils) shuf invocation'