plan9fox/rc/bin/"

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#!/bin/rc
rfork en
PROMPT='[^ ]*(%|;)[ ]+'
fn cmds {
grep '^'$PROMPT'[^"]' /dev/text | sed 's/^/ /'
}
switch($#*) {
case 0
cmds | tail -1
case *
cmds | grep '^ '$PROMPT^$"* | {echo; cat} |
pr -t -n | sort -nr | sort -u +1 | sort -n |
sed 's/^ *[0-9]+ //' | grep .
}
# the silly {echo; cat} gets around pr printing "empty file" when
# presented with no input.