onehost: update help; help without requirements

check_onehost

@@ -9,33 +9,27 @@
 # ----------------------------------------------------------------------
 # 2023-06-09  v1.0  <axel.hahn@unibe.ch>  initial version
 # 2023-06-12  v1.1  <axel.hahn@unibe.ch>  show message if no sudo permissions on onehost command exist
+# 2023-08-23  v1.2  <axel.hahn@unibe.ch>  update help; show help without requirements
 # ======================================================================
 
 
 . $(dirname $0)/inc_pluginfunctions
 
-self_APPNAME=$( basename $0 | tr [:lower:] [:upper:] )
-self_APPVERSION=1.1
+self_APPVERSION=1.2
 
 # ----------------------------------------------------------------------
 # functions
 # ----------------------------------------------------------------------
 
 function showHelp(){
+    local _self; _self=$(basename $0)
 cat <<EOF
-______________________________________________________________________
+$( ph.showImlHelpHeader )
 
-$self_APPNAME 
-v$self_APPVERSION
-
-(c) Institute for Medical Education - University of Bern
-Licence: GNU GPL 3
-______________________________________________________________________
-
-show count of hosts in OpenNebula and warn if a host is down.
+Show count of hosts in OpenNebula and warn if a host is down.
 
 SYNTAX:
-$(basename $0) [ -w value -c value -h ]
+$_self [ -w value -c value -h ]
 
     -w VALUE       cpu usage warning level  (default: 1)
     -c VALUE       cpu usage critical level (default: 2)
@@ -46,7 +40,7 @@ PARAMETERS:
     None.
 
 EXAMPLE:
-$(basename $0) -c 1   set to critical if the 1st host is off.
+$_self -c 1   set to critical if the 1st host is off.
 
 EOF
 }
@@ -54,9 +48,6 @@ EOF
 # MAIN
 # ----------------------------------------------------------------------
 
-# --- check required tools
-ph.require onehost
-
 # --- check param -h
 case "$1" in
     "--help"|"-h")
@@ -66,6 +57,9 @@ case "$1" in
     *)
 esac
 
+# --- check required tools
+ph.require onehost
+
 # --- set optional limits
 typeset -i iWarnLimit=$(     ph.getValueWithParam 1 w "$@")
 typeset -i iCriticalLimit=$( ph.getValueWithParam 2 c "$@")