system/epson-printer-utility: Replaced backtick cmdsub

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/epson-printer-utility/doinst.sh

@@ -33,7 +33,7 @@ echo
 echo "************************* NOTICE *********************************"
 echo "ecbd needs to be running for the printer monitor to be usable. run"
 echo "/etc/rc.d/rc.ecbd restart"
-if [ x`grep "rc.ecbd start" /etc/rc.d/rc.local|wc -l` = "x0" ]; then
+if [ x$(grep "rc.ecbd start" /etc/rc.d/rc.local|wc -l) = "x0" ]; then
   echo "to get it to run automatically at startup, add the following"
   echo "to /etc/rc.d/rc.local"
   echo "if [ -x /etc/rc.d/rc.ecbd ]; then"

system/epson-printer-utility/fixrm

@@ -11,8 +11,8 @@
 FNAME="README.models"
 MAXLEN=${MAXLEN:-72}
 #make sure MAXLEN is a integer bigger than 39
-MAXLEN=`echo $MAXLEN|awk '($1<40) {print "40"} (int($1)>39) {print int($1) }'`
-if [ -e $FNAME ]&&[ `cat $FNAME|head -n1|awk '{print length($0)}'` -gt $MAXLEN ]; then
+MAXLEN=$(echo $MAXLEN|awk '($1<40) {print "40"} (int($1)>39) {print int($1) }')
+if [ -e $FNAME ]&&[ $(cat $FNAME|head -n1|awk '{print length($0)}') -gt $MAXLEN ]; then
   #only do something if the file exists, and thefirst line is longer than  it
   #should be.
   TMPFILE=rmtmp

system/epson-printer-utility/rc.ecbd

@@ -9,7 +9,7 @@ PIDFILE=/var/run/ecbd.pid
 OPT=${1:-start}
 case "$OPT" in
 'start')
-  if [ `ps -A|grep ecbd|grep -v "rc.ecbd"|wc -l` -gt 0 ]||[ -e $PIDFILE ]; then
+  if [ $(ps -A|grep ecbd|grep -v "rc.ecbd"|wc -l) -gt 0 ]||[ -e $PIDFILE ]; then
     echo "ecbd is already running"
   else
     /usr/lib/epson-backend/ecbd -p $PIDFILE &
@@ -17,13 +17,13 @@ case "$OPT" in
   ;;
 'stop')
   if [ -e /var/run/ecbd.pid ]; then
-    kill `cat $PIDFILE`
+    kill $(cat $PIDFILE)
   fi
   rm -f $PIDFILE
   ;;
 'restart')
   if [ -e $PIDFILE ]; then
-    kill `cat $PIDFILE`
+    kill $(cat $PIDFILE)
   fi
   rm -f $PIDFILE
   /usr/lib/epson-backend/ecbd -p $PIDFILE &