fs_errors: shell fixes; update help page

check_fs_errors

@@ -10,10 +10,14 @@
 # ----------------------------------------------------------------------
 # 2021-03-23  v1.0  <axel.hahn@iml.unibe.ch>
 # 2021-03-30  v1.1  <axel.hahn@iml.unibe.ch>  max age of detected errors: since yesterday (commented)
+# 2023-07-27  v1.2  <axel.hahn@iml.unibe.ch>  shell fixes; update help page
 # ======================================================================
 
 
-. `dirname $0`/inc_pluginfunctions
+. $( dirname $0 )/inc_pluginfunctions
+
+self_APPNAME=$( basename $0 | tr [:lower:] [:upper:] )
+self_APPVERSION=1.2
 
 
 # ----------------------------------------------------------------------
@@ -21,18 +25,22 @@
 # ----------------------------------------------------------------------
 
 function showHelp(){
+    _self=$(basename $0)
 cat <<EOF
 ______________________________________________________________________
 
-CHECK_FS_ERRORS check if kernel logs inconsistency messages
+$self_APPNAME 
+v$self_APPVERSION
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
 ______________________________________________________________________
 
+Check if kernel logs inconsistency messages in the journallog.
+It requires sudo permission on /bin/journalctl
 
 SYNTAX:
-`basename $0` [-h]
+$_self [-h]
 
 OPTIONS:
 
@@ -43,7 +51,7 @@ PARAMETERS:
     none
 
 EXAMPLE:
-`basename $0`
+$_self
 
 EOF
 }
@@ -76,7 +84,7 @@ test ! -z "$out" && ph.setStatus "critical"
 # ----- OUTPUT
 
 ph.status "check if kernel logs inconsistency messages"
-echo $out
+echo "$out"
 
 
 # ----- CLEANUP AND BYE!