ref: 577a9f763f0535391ef3190ea8214a4e420717af
dir: /sys/src/ape/lib/ap/gen/reduce/
O=$1 shift objtype=$1 shift ls -p ../$objtype/*.[cs] >[2]/dev/null | sed 's/..$//;s/^/^/' > /tmp/reduce.$pid # # if empty directory, just return the input files # if (! ~ $status '|') { echo $* rm /tmp/reduce.$pid exit 0 } echo $* | tr ' ' \012 | grep -v -f /tmp/reduce.$pid | tr \012 ' ' rm /tmp/reduce.$pid