netstat: update help; small fixes

check_netstat

@@ -9,46 +9,42 @@
 # ----------------------------------------------------------------------
 # 2020-07-08  v1.0  <axel.hahn@iml.unibe.ch>
 # 2022-10-25  v1.1  <axel.hahn@unibe.ch>      shell fixes; no tmpfiles; IML look
+# 2023-08-22  v1.2  <axel.hahn@unibe.ch>      update help; small shell fixes
 # ======================================================================
 
 
 . $( dirname $0 )/inc_pluginfunctions
 
-self_APPNAME=$( basename $0 | tr [:lower:] [:upper:] )
-self_APPVERSION=1.1
+export self_APPVERSION=1.2
 
 # ----------------------------------------------------------------------
 # functions
 # ----------------------------------------------------------------------
 
 function showHelp(){
+    local _self; _self=$(basename $0)
 cat <<EOF
-______________________________________________________________________
-
-$self_APPNAME 
-v$self_APPVERSION
-
-(c) Institute for Medical Education - University of Bern
-Licence: GNU GPL 3
-______________________________________________________________________
+$( ph.showImlHelpHeader )
 
 Count number of network connections.
 
 SYNTAX:
-$(basename $0) [ -w value -c value -h ]
+$_self [ -w value -c value -h ]
 
-    -w VALUE       cpu usage warning level  (default: 75)
-    -c VALUE       cpu usage critical level (default: 90)
+    -w VALUE       warning level for connectios total
+    -c VALUE       critical level
     -h or --help   show this help.
 
 PARAMETERS:
 
     None.
 
-EXAMPLE:
-$(basename $0) -w 60 -c 80 -p 40
-
+EXAMPLES:
+$_self      Show count of current connections
                    If there is no -w and -c then the result is always OK.
+$_self -w 400 -c 500
+                   Show count of connections incl. limits for warning
+                   and critical.
 
 EOF
 }
@@ -69,8 +65,8 @@ case "$1" in
 esac
 
 # --- set optional limits
-typeset -i iWarnLimit=$(     ph.getValueWithParam 0 w "$@")
-typeset -i iCriticalLimit=$( ph.getValueWithParam 0 c "$@")
+typeset -i iWarnLimit;     iWarnLimit=$(     ph.getValueWithParam 0 w "$@")
+typeset -i iCriticalLimit; iCriticalLimit=$( ph.getValueWithParam 0 c "$@")
 
 # --- count all connections
 typeset -i iTotal=0