shuf
generate random permutations
TLDR
Randomize the order of lines in a file and output the result
Only output the first 5 entries of the result
Write the output to another file
Generate random numbers in range
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
REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHT
Copyright 2019 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
Full documentation <https://www.gnu.org/software/coreutils/shuf> or available locally via: info shuf invocation
AUTHOR
Written by Paul Eggert.