v1.01

- added comments
- inotify mode exits if a watchfile is away

onfilechange.sh

@@ -14,6 +14,7 @@
 # check a file change.
 #
 # licence: GNU GPL 3.0
+# source: https://git-repo.iml.unibe.ch/open-source/onfilechange
 #
 # ----------------------------------------------------------------------
 # 2019-10-14  v1.0  <axel.hahn@iml.unibe.ch>  first basic version
@@ -30,7 +31,7 @@ sWatchFile=
 sMode=
 
 # ---- below are some internal variables 
-sVersion=1.0
+sVersion=1.01
 
 
 # ----------------------------------------------------------------------
@@ -80,7 +81,7 @@ ENDOFHELP
 # param  string  text message to show
 function wd(){
 	if [ $bDebug -ne 0 ]; then
-		echo "[`date`] DEBUG " $*
+		echo "[`date`] DEBUG |" $*
 	fi
 }
 
@@ -128,10 +129,11 @@ function compareFilestatus(){
 		wd "Change detected."
 		execCommand
 		if [ $? -eq 0 ]; then
-			echo Command was successfuil. 
+			echo Command was successful. 
 			echo
 			wd "Re-Init File status"
-			initFilestatus
+			# initFilestatus
+			mv ${sTmpFile2} ${sTmpFile}
 		else
 			echo FAILED.
 		fi
@@ -153,11 +155,11 @@ function execCommand(){
 # ----------------------------------------------------------------------
 
 cat <<ENDOFHEAD
-____________________________________________________________________________________
+______________________________________________________________________________
 
   T R I G G E R    C O M M A N D    O N    A    F I L E C H A N G E
-____________________________________________________________________________________
-                                                                                v${sVersion}
+______________________________________________________________________________
+                                                                         v${sVersion}
 
 ENDOFHEAD
 
@@ -183,11 +185,11 @@ fi
 
 while getopts ":c: :v :f: :h :i :s :w:" opt
 do
-        case $opt in
-                \?|h)
-                        showHelp
-                        exit 0
-                        ;;
+	case $opt in
+		\?|h)
+			showHelp
+			exit 0
+			;;
 		v)
 			bDebug=1
 			wd "debug is now ${bDebug}"
@@ -208,14 +210,14 @@ do
 			sMode=stats
 			wd "forcing mode with stats command"
 			;;
-                w)
-                        typeset -i iSleep=$OPTARG
-                        wd "sleep $iSleep sec"
-                        ;;
-                :)
-                        echo "ERROR: Option -$opt requires an argument." >&2
-                        showHelp
-                        exit 1
+		w)
+				typeset -i iSleep=$OPTARG
+				wd "sleep $iSleep sec"
+				;;
+		:)
+				echo "ERROR: Option -$opt requires an argument." >&2
+				showHelp
+				exit 1
         esac
 done
 
@@ -250,11 +252,13 @@ if [ -z "${sCommand}" ]; then
 	echo ERROR: set a ${sCommand} with param -s
 	exit 1
 fi
+echo
 
 # ----------------------------------------------------------------------
 # GO
 # ----------------------------------------------------------------------
 
+echo ">>>>> start"
 myset=`echo ${sWatchFile} | sha1sum | cut -f 1 -d " "`
 sTmpFile="/tmp/`basename $0`-${myset}-last.tmp"
 sTmpFile2="/tmp/`basename $0`-${myset}-current.tmp"
@@ -266,15 +270,17 @@ case $sMode in
 			if [ $? -eq 0 ]; then
 				inotifywait -e attrib -e modify ${sWatchFile} && execCommand
 			else 
+				echo "ERROR: inotifywait only can notify if all watched files exist."
+				echo "Use parameter -s to use stats for file detection, This mode also allows that a file is deleted."
 				wd sleep ${iSleep}
 				sleep ${iSleep}
-				echo "WARNING: inotifywait only can notify if all watched files exist. You can use -s to use stats for file detection"
+				exit 2
 			fi
 		done
 		;;
 
 	"stats")
-		wd "--- init"
+		wd "--- initial read of watched files"
 		initFilestatus
 		echo waiting for file changes ...