Manual browser: shuffle(1)
|SHUFFLE(1)||General Commands Manual||SHUFFLE(1)|
NAMEshuffle — print a random permutation of the command line arguments
|shuffle||[-0] [-f filename ...] [-n number] [-p number] [arg] [...]|
DESCRIPTIONThe shuffle program prints a random permutation (or “shuffle”) of its command line arguments. This can be useful in shell scripts for selecting a random order in which to do a set of tasks, view a set of files, etc.
If the -f option is given, the data is taken from that files' contents or if the filename is - “stdin”.
If the -n option is given, its argument is treated as a number, and the program prints a random permutation of the numbers greater than or equal to 0 and less than the argument.
If the -p option is given, its argument is treated as a number, and the program prints that number of randomly selected lines or arguments in a random order.
The -0 option changes the field separator character from \n to \0, so that the output is suitable to be sent to xargs(1) (to handle filenames with whitespace in them).
$ shuffle a b c d c b d a $ shuffle -p 1 a b c d d $ shuffle -n 4 -p 2 0 3
HISTORYThe shuffle program first appeared in NetBSD 1.4.
AUTHORSWritten by <firstname.lastname@example.org>.
|February 18, 2009||NetBSD 7.0|