getDates.sh: fix bug resulting from different headers. Add function to calc...

getDates.sh: fix bug resulting from different headers. Add function to calc header size for each file. Output errors/warnings to stderr

getDates.sh

 #!/bin/bash
 # # # #
-# Determine time of last and first Trackevent in file/unit
+# Determine start and end of Trackevents in files/units
+# >> summarizes for all files for a unit and for all units
 #
 # Why? Because timestamp is not human-readable and one unit can have multiple files.
-#
 ##
 
-function isNumber(){
+function isNumber() {
+
 	re='^[0-9]+$'
 	if [[ "$1" =~ $re ]]; then
 		return 1
@@ -15,16 +16,30 @@ function isNumber(){
 	fi
 }
 
+function getHeaderSize {
+
+	HEADER_SIZE=0
+	while read -r line; do
+		if [ ${line::1} != '#' ]; then
+			break
+		fi
+		((HEADER_SIZE++))
+	done < "$1"
+}
+
 function getDates() {
-	# gets second/last line timestamp and transform it to date
+	# gets first line after header and last line timestamp and transform it to date
 	# for more files, will get latest/earliest date of all files
 	
 	date1=`date +%s`
 	date2=0
 	for file in "$@"; do
-		timestamp1=`head -2 "$file" | tail -1 | cut -d';' -f1`
+		# echo "process file $file"
+		getHeaderSize "$file"
+
+		timestamp1=`head -$((HEADER_SIZE+1)) "$file" | tail -1 | cut -d';' -f1`
 		timestamp2=`tail -1 "$file" | cut -d';' -f1`
-		
+
 		isNumber "$timestamp1"
 		if [ "$?" != 0 ]; then
 			if [ ${timestamp1} -lt ${date1} ]; then
@@ -32,7 +47,7 @@ function getDates() {
 				file1="$file"
 			fi
 		else
-			echo "nonum"
+			echo "nonum"  >> /dev/stderr
 		fi
 
 		isNumber "$timestamp2"
@@ -42,7 +57,7 @@ function getDates() {
 				file2="$file"
 			fi
 		else
-			echo "nonum"
+			echo "nonum"  >> /dev/stderr
 		fi
 	done
 
@@ -63,6 +78,7 @@ function getDates() {
 }
 
 function getDatesUnit(){
+
 	for i in "$@"; do
 		echo "unit $i"
 		files=`ls "$dir"/*unit-$i-* 2> /dev/null` 
@@ -76,13 +92,12 @@ function getDatesUnit(){
 }
 
 function getDatesAll() {
-	
+
 	earliest=`date +%s`
 	latest=0
 
 	getDatesUnit {1..13}
 
-
 	earliest=`date -d @"$earliest" +"%Y-%m-%d %T"`
 	latest=`date -d @"$latest" +"%Y-%m-%d %T"`
 	echo "unit all"
@@ -90,6 +105,8 @@ function getDatesAll() {
 	echo "${latest}		${latestFile}"
 }
 
+####################################
+
 if [ -z $1 ];then
 	dir="."
 else
@@ -100,4 +117,4 @@ else
 	fi
 fi
 
-getDatesAll # > "${dir}/../02-inspect/dates"
+getDatesAll

unknown-tags.sh

 #!/bin/bash
-# scriptdir=`dirname $0`
+
 this=`basename $0`
 out1="tags_unknown"
 out2="tags_info"