Shell Programming and Scripting

WebServer:/ timgolding$ cd /var/run
WebServer:/var/run timgolding$ sudo grep "39" *
grep: asl_input: Operation not supported on socket
grep: cupsd: Operation not supported on socket
grep: mDNSResponder: Operation not supported on socket
grep: portmap.socket: Operation not supported on socket
grep: pppconfd: Operation not supported on socket
grep: syslog: Operation not supported on socket
syslog.pid:39

if [ -f /var/run/syslog.pid ]; then kill -HUP $(cat /var/run/syslog.pid | head -1); fi

echo ""
# Log rotations modded to hell by Tim Golding
printf %s "Rotating log files:"
cd /var/log
# Add new logs to this list
for i in asl.log servermgrd.log crashreporter.log ftp.log lookupd.log lpr.log mail.log netinfo.log hwmond.log ipfw.log secure.log; do
    if [ -f "${i}" ]; then
    if [ "crashreporter.log" == "${i}" ] && !(lsof "${i}") || [ "crashrepoter.log" != "${i}" ]; then
        file_size=`ls -l "${i}"| awk '{printf "%s",$5}'`
        max=2097152
        if [ $file_size -gt $max ]; then
                ch_mod=`ls -l "${i}"| awk '{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf("%0o ",k);print}'| awk '{printf "%s",$1}'`
                this_group=`ls -l "${i}"| awk '{printf "%s",$3}'`
                this_user=`ls -l "${i}"| awk '{printf "%s",$4}'`
                printf %s " $i"
                if [ -x /usr/bin/gzip ]; then gzext=".gz"; else gzext=""; fi
                if [ -f "${i}.3${gzext}" ]; then mv -f "${i}.3${gzext}" "${i}.4${gzext}"; fi
                if [ -f "${i}.2${gzext}" ]; then mv -f "${i}.2${gzext}" "${i}.3${gzext}"; fi
                if [ -f "${i}.1${gzext}" ]; then mv -f "${i}.1${gzext}" "${i}.2${gzext}"; fi
                if [ -f "${i}.0${gzext}" ]; then mv -f "${i}.0${gzext}" "${i}.1${gzext}"; fi
                if [ -f "${i}" ]; then mv -f "${i}" "${i}.0" && if [ -x /usr/bin/gzip ]; then gzip -9 "${i}.0"; fi; fi
                touch "${i}" && chmod "${ch_mod}" "${i}" && chown "${this_group}":"${this_user}" "${i}"
        fi
    fi
 fi
done
if [ -f /var/run/servermgrd.pid ]; then kill -HUP $(cat /var/run/servermgrd.pid | head -1); fi
if [ -f /var/run/syslog.pid ]; then kill -HUP $(cat /var/run/syslog.pid | head -1); fi
echo ""