dns_response - shell fixes; remove pipe in output

check_dns_responsetime

@@ -10,10 +10,11 @@
 # 2021-11-12  v1.1  <axel.hahn@iml.unibe.ch>  check fqd instead of fixed value
 #                                             test tcp 53 first
 #                                             check result depends on 1st nameserver only
+# 2022-10-24  v1.2  <axel.hahn@unibe.ch>      shell fixes; remove pipe char in output
 # ======================================================================
 
 
-. `dirname $0`/inc_pluginfunctions
+. $(dirname $0)/inc_pluginfunctions
 tmpfile=/tmp/check_netstat_out_$$
 infofile=/tmp/check_netstat_out_2_$$
 myHost=$( hostname -f )
@@ -26,8 +27,8 @@ if [ $? -ne 0 ]; then
 fi
 
 # set default / override from command line params
-typeset -i iWarnLimit=`     ph.getValueWithParam  300 w "$@"`
-typeset -i iCriticalLimit=` ph.getValueWithParam 1000 c "$@"`
+typeset -i iWarnLimit=$(     ph.getValueWithParam  300 w "$@")
+typeset -i iCriticalLimit=$( ph.getValueWithParam 1000 c "$@")
 
 rm -f $tmpfile $infofile 2>/dev/null
 
@@ -54,7 +55,7 @@ if [ "$1" = "-h" ]; then
     exit 0
 fi
 
-for mydns in `grep ^nameserver /etc/resolv.conf | awk '{ print $2 } ' `
+for mydns in $(grep ^nameserver /etc/resolv.conf | awk '{ print $2 } ' )
 do
     iCounter=$iCounter+1
     typeset -i iSrvMax=0
@@ -72,7 +73,7 @@ do
         do
             (time nslookup ${myHost} $mydns) >$tmpfile 2>&1
 
-            iTime=`cat $tmpfile | grep "^real.*m.*\..*s" | cut -f 2 -d "m" | sed "s#[\.s]##g" | sed "s#^0*##g" `
+            iTime=$(cat $tmpfile | grep "^real.*m.*\..*s" | cut -f 2 -d "m" | sed "s#[\.s]##g" | sed "s#^0*##g" )
             echo "$mydns #$i >>> $iTime ms" >>$infofile
             test $iTime -ge $iWarnLimit && cat $tmpfile | grep -vE "^(real|user|sys)" >> $infofile
             test $iTime -gt $iSrvMax && iSrvMax=$iTime
@@ -83,11 +84,11 @@ do
         # --- set status
         test $iCounter -eq 1 && ph.setStatusByLimit $iSrvMax $iWarnLimit $iCriticalLimit
 
-        label=`echo $mydns | sed "s#\.#-#g" `
+        label=$(echo $mydns | sed "s#\.#-#g" )
         ph.perfadd "response-$label" "${iSrvMax}"
         test $iSrvMax -gt $iMax && iMax=$iSrvMax
     fi
-    test $iCounter -eq 1 && (echo " ^"; echo " |"; echo " +--- 1st nameserver is relevant for total status of the check. Limits are warning=$iWarnLimit and critical=$iCriticalLimit") >>$infofile
+    test $iCounter -eq 1 && (echo " ^"; echo " :"; echo " +--- 1st nameserver is relevant for total status of the check. Limits are warning=$iWarnLimit and critical=$iCriticalLimit") >>$infofile
     echo "" >>$infofile
 done