Got rid of - as a default delim, added -s and --num options

ENV

@@ -4,11 +4,13 @@
 
 varName="servicedesc"
 varDefault=""
-myDelim="[ :-]"
+myDelim="[ :]"
 myField=""
 myHost=""
 myService=""
 myContact=""
+myString=""
+doNumber=""
 doLower=""
 doUpper=""
 doVerbose=""
@@ -18,7 +20,7 @@ do_help() {
 cat << HELP_EOF
 This utility is designed to be called by the ARGx parameters of a Nagios configuration as one of the following:
 
-  \$\$(\$USER1\$/env [-n <var>] [-t <default>] [-f <field>] [-d <delim>] [-u] [-H|-S|-C <suffix>] [-v]
+  \$\$(\$USER1\$/env [-n <var>] [-t <default>] [-f <field>] [-d <delim>] [-s <val>] [-u|-l] [-H|-S|-C <suffix>] [-v]
   \$\$(\$USER1\$/env -N [-H suffix]
 
 
@@ -27,11 +29,13 @@ Where:
   var     the name of a case-insensitive NAGIOS_variable (defaults to "servicedesc")
   default a default value if \$NAGIOS_var\$ is blank (case sensitive)
   field   an awk-compatible field number (potentially to use with <delim>)
-  delim   an awk-compatible field delimiter (defaults to space, dash, and colon)
+  delim   an awk-compatible field delimiter (defaults to space and colon)
   -u      Convert the output to uppercase
   -l	  Convert the output to lowercase
   suffix  Take var result and use the it to get NAGIOS__[HOST|SERVICE|CONTACT]<result><suffix>
   -v      Be verbose (only for debugging)
+  -s	  The result must match this value or else it will return blank
+  --num   The result will have all non-numbers stripped from it
   -N      Look for NAGIOS__HOSTNCPA<suffix> (defaults to TOKEN)
 	Can do double lookup if -H is specified directly: -H TOKEN will find NAGIOS__HOSTNCPATOKEN=Level1 which then finds NAGIOS__HOSTLEVEL1TOKEN=Secret
 	Or -H PASS will find NAGIOS__HOSTNCPAPASS=Level2 which will then find NAGIOS__HOSTLEVEL2PASS=SuperSecret
@@ -70,6 +74,8 @@ while [ -n "$1" ]; do
     -H) myHost="$2"; shift 2;;
     -S) myService="$2"; shift 2;;
     -C) myContact="$2"; shift 2;;
+    -s) myString="$2"; shift 2;;
+    --num) doNumber="true"; shift 1;;
     -N) doNCPA="true"; shift 1;;
     -u) doUpper="true"; shift 1;;
     -l) doLower="true"; shift 1;;
@@ -127,6 +133,9 @@ if [ -n "$myContact" ]; then
   varValue=${!myContact}
 fi
 
+[ -n "$myString" -a "$myString" != "$varValue" ] && varValue=""
+[ -n "$doNumber" ] && varValue=`echo $varValue | tr -d -c "0-9"`
+
 [ -z "$varValue" ] && varValue="$varDefault"
 echo "$varValue"