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       Restarting updated services on OpenBSD
       ======================================
       On my OpenBSD boxes I regularly use the `sysutils/checkrestart` port after
       updating my machines.
       
       For quite some time I have been using scripts which just run a line like the
       following for each and every service I am using on that host:
       
       ```bash
       [...]
       checkrestart | grep node_exporter && rcctl restart node_exporter
       [...]
       ```
       
       This has proved to be quite inefficient, and annoying to maintain over time.
       So I replaced it with the following simple script:
       
       ```bash
       #!/bin/sh
       
       cbinaries="$(checkrestart | cut -f 2)"
       
       for sfile in /etc/rc.d/*; do
           sname="$(basename $sfile)"
       
           [ "$sname" = "rc.subr" ] && continue
       
           dfile="$(awk -F'=' '/daemon=/{gsub(/"/, "", $2); print $2}' "$sfile")"
           dcommand="$(echo $dfile | cut -d " " -f 1)"
           dbinary="$(basename $dcommand)"
       
           for binary in "$cbinaries"; do
               if echo "$cbinaries" | grep -q "$dbinary" > /dev/null; then
                   echo "Restarting $sname due to changed binary: $daemon ..."
                   rcctl restart "$sname"
                   break
               fi
           done
       done
       ```
       
       Finally something simple, I can automatically deploy to all my OpenBSD machines,
       and regularily run, to automatically restart all updated services, independent
       of the enabled services on that host (like needrestart on Linux).
       
       
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