sample

Return a random subset of sequences.

Usage:
    st sample [options][-a <attr>...][-l <list>...] [<input>...]
    st sample (-h | --help)
    st sample --help-vars

Options:
    -f, --frac <frac>   Randomly select with probability f returning the given
                        fraction of sequences on average.
    -n, --num-seqs <n>  Randomly selects exactly n records. Does not work with
                        STDIN because records have to be counted before.
    -s, --seed <s>      Use this seed to make the sampling reproducible.
                        Useful e.g. for randomly selecting from paired end reads.

See this page for the options common to all commands.