Author: adc

 random mpd album
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 $ mpc findadd album "$(mpc list album | sort -R | head -1)"

 Explanation: Add a random album to the mpd queue.

 timestamp
===========

 $ while read -r; do printf '%s %s\n' "$(date '+$H:$M:$S')" "$REPLY"; done

 Explanation: Add a timestamp to every line in stdin.