use stat as default

onfilechange.sh

@@ -10,14 +10,15 @@
 # It loops permanently; you need to stop it by Ctrl + C and/ or can
 # use it as systemd watcher daemon.
 #
-# It uses stats for wide compatibility but prefers inotifywatch to
-# check a file change.
+# It uses stat for wide compatibility but can enable inotifywatch to
+# check a file change by an event.
 #
 # licence: GNU GPL 3.0
 # source: https://git-repo.iml.unibe.ch/iml-open-source/onfilechange
 #
 # ----------------------------------------------------------------------
-# 2019-10-14  v1.0  <axel.hahn@iml.unibe.ch>  first basic version
+# 2019-10-14  v1.0   <axel.hahn@iml.unibe.ch>  first basic version
+# 2019-10-21  v1.03  <axel.hahn@iml.unibe.ch>  use stat as default
 # ======================================================================
 
 # ----------------------------------------------------------------------
@@ -31,7 +32,7 @@ sWatchFile=
 sMode=
 
 # ---- below are some internal variables 
-sVersion=1.02
+sVersion=1.03
 
 
 # ----------------------------------------------------------------------
@@ -55,11 +56,11 @@ PRAMETERS:
         -i
             force inotifywait command
         -s
-	        force stats command
+	        force stat command (default mode)
         -v
             verbose mode; enable showing debug output
         -w [integer]
-            for stats mode: wait time in seconds betweeen each test or on missing file; default: 5 sec
+            for stat mode: wait time in seconds betweeen each test or on missing file; default: 5 sec
 
 EXAMPLES:
         `basename $0` -f /home/me/touchfile.txt -c "ls -l" 
@@ -68,8 +69,8 @@ EXAMPLES:
         `basename $0` -f "/home/me/touchfile.txt home/me/touchfile2.txt" -c "ls -l" 
             watch touchfile.txt and touchfile2.txt
 
-        `basename $0` -f /home/me/touchfile.txt -s -w 10 -c "ls -l" 
-            watch touchfile.txt every 10 sec with stats and make a file listing on change
+        `basename $0` -f /home/me/touchfile.txt -s -w 10 -c "echo hello" 
+            watch touchfile.txt every 10 sec with stat and show "hello" on a change
 
 ENDOFHELP
 
@@ -94,7 +95,7 @@ function listFiles(){
 	ls -ld ${sWatchFile} 2>&1
 }
 
-# for stats: helper to get current file status
+# for stat: helper to get current file status
 #
 # global (string) $sWatchFile
 function getFilestatus(){
@@ -104,7 +105,7 @@ function getFilestatus(){
 	done
 }
 
-# for stats: inititalize file change detection
+# for stat: inititalize file change detection
 #
 # global (string) $TmpFile    last/ initial file status
 # global (string) $sTmpFile2  current file status
@@ -114,7 +115,7 @@ function initFilestatus(){
 	cp -p ${sTmpFile} ${sTmpFile2}
 }
 
-# for stats: compare file status and execute command on change
+# for stat: compare file status and execute command on change
 #
 # global (string) $TmpFile    last/ initial file status
 # global (string) $sTmpFile2  current file status
@@ -163,19 +164,19 @@ ______________________________________________________________________________
 
 ENDOFHEAD
 
-which inotifywait >/dev/null 2>&1
+which stat >/dev/null 2>&1
 if [ $? -ne 0 ]; then
-	echo ERROR: the command inotify was not found on your system,
-	which stat >/dev/null 2>&1
+	echo ERROR: the command stat was not found on your system.
+	which inotifywait >/dev/null 2>&1
 	if [ $? -ne 0 ]; then
-		echo ERROR: the command stat was not found on your system,
+		echo ERROR: the command inotifywait was not found on your system.
 		exit 2
 	fi
-	echo "INFO: enabling compatibility mode with stats command"
-	sMode=stats
-else
-	echo "INFO: inotifywait command detected"
+	echo "INFO: enabling inotifywait command"
 	sMode=inotifywait
+else
+	echo "INFO: stat command detected"
+	sMode=stat
 fi
 
 if [ $# -eq 0 ]; then
@@ -207,8 +208,8 @@ do
 			wd "forcing mode with inotifywait command"
 			;;
 		s)
-			sMode=stats
-			wd "forcing mode with stats command"
+			sMode=stat
+			wd "forcing mode with stat command"
 			;;
 		w)
 				typeset -i iSleep=$OPTARG
@@ -222,10 +223,12 @@ do
 done
 
 cat <<ENDOFINFO
+
+--- summary
 checking file [${sWatchFile}]
 with command [${sMode}] 
-with a sleep time of  [${iSleep}] seconds 
-and on change start command [${sCommand}]
+with a sleep time of [${iSleep}] seconds 
+and on change I start the command [${sCommand}]
 
 ...............................................................................
 
@@ -271,7 +274,7 @@ case $sMode in
 				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."
+				echo "Use parameter -s to use stat for file detection, This mode also allows that a file is deleted."
 				wd sleep ${iSleep}
 				sleep ${iSleep}
 				exit 2
@@ -279,7 +282,7 @@ case $sMode in
 		done
 		;;
 
-	"stats")
+	"stat")
 		wd "--- initial read of watched files"
 		initFilestatus
 		echo waiting for file changes ...