slackbuilds/rebuild-and-install-all.sh

#!/bin/bash

WD=/home/installs/SlackBuilds
CAT=${CAT:-$1}

cd $WD
./what-s_installed.sh | grep "^| x .*" | cut -d\  -f2 | grep "^${CAT}/.*"

echo "Ctrl-C to stop here, enter to continue"
read

for p in $(./what-s_installed.sh | grep "^| x .*" | cut -d\  -f2 | grep "^${CAT}/.*"); do
    (cd $p
     bash -e ./SlackBuild || echo "ERROR $p" >> $WD/_errors_rebuild)
done