28.8. Configure the /etc/rc.d/init.d/squid script file -/all configurations

               #!/bin/bash
               # squid		This shell script takes care of starting and stopping
               #		Squid Internet Object Cache
               #
               # chkconfig: - 90 25
               # description: Squid - Internet Object Cache. Internet object caching is \
               # 	a way to store requested Internet objects (i.e., data available \
               # 	via the HTTP, FTP, and gopher protocols) on a system closer to the \
               #	requesting site than to the source. Web browsers can then use the \
               #	local Squid cache as a proxy HTTP server, reducing access time as \
               #	well as bandwidth consumption.
               # pidfile: /var/run/squid.pid
               # config: /etc/squid/squid.conf
               PATH=/usr/bin:/sbin:/bin:/usr/sbin
               export PATH
               # Source function library.
               . /etc/rc.d/init.d/functions
               # Source networking configuration.
               . /etc/sysconfig/network
               # Check that networking is up.
               [ ${NETWORKING} = "no" ] && exit 0
               # check if the squid conf file is present
               [ -f /etc/squid/squid.conf ] || exit 0
               # determine the name of the squid binary
               [ -f /usr/sbin/squid ] && SQUID=squid
               [ -z "$SQUID" ] && exit 0
               # determine which one is the cache_swap directory
               CACHE_SWAP=`sed -e 's/#.*//g' /etc/squid/squid.conf | \
               grep cache_dir | sed -e 's/cache_dir//' | \
               cut -d ' ' -f 2`
               [ -z "$CACHE_SWAP" ] && CACHE_SWAP=/cache
               # default squid options
               # -D disables initial dns checks. If you most likely will not to have an
               #    internet connection when you start squid, uncomment this
               #SQUID_OPTS="-D"
               RETVAL=0
               case "$1" in
               start)
               echo -n "Starting $SQUID: "
               for adir in $CACHE_SWAP; do
               if [ ! -d $adir/00 ]; then 
               echo -n "init_cache_dir $adir... "
               $SQUID -z -F 2>/dev/null
               fi
               done
               $SQUID $SQUID_OPTS &
               RETVAL=$?
               echo $SQUID
               [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$SQUID
               ;;
               stop)
               echo -n "Stopping $SQUID: "
               $SQUID -k shutdown &
               RETVAL=$?
               if [ $RETVAL -eq 0 ] ; then
               rm -f /var/lock/subsys/$SQUID
               while : ; do
               [ -f /var/run/squid.pid ] || break
               sleep 2 && echo -n "." 
               done
               echo "done"
               else
               echo
               fi
               ;;
               reload)
               $SQUID $SQUID_OPTS -k reconfigure 
               exit $?
               ;;
               restart)
               $0 stop
               $0 start
               ;;
               status)
               status $SQUID
               $SQUID -k check
               exit $?
               ;;
               probe)
               exit 0;
               ;;
               *)
               echo "Usage: $0 {start|stop|status|reload|restart}"
               exit 1
               esac
               exit $RETVAL