rc/sh/scount

#!/usr/bin/env sh
# compat: +ash +bash +dash +zsh

### @ scount
### perform `sort | uniq -c | sort -n`, preferring GNU awk when available.

if "$HOME/sh/witch" gawk >/dev/null 2>/dev/null; then
    scount() {
        argc $# -le 1 scount || return
        gawk -- 'BEGIN{PROCINFO["sorted_in"]="@val_num_desc"}{a[$0]--}END{for(i in a)printf "%7i %s\n",-a[i],i}' "$@"
    }
else
    scount() {
        argc $# -le 1 scount || return
        sort -- "$@" | uniq -c | sort -n
    }
fi

[ -n "${preload+-}" ] || . ~/sh/preload || exit 2
eval ${preload:-preload} argc
[ -n "${preload+-}" ] || scount "$@"