Add script for converting log timestamps

convertlogtimestamp.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env sh
+# Converts ROS2 log data timestamps from stdin to more readable format
+
+
+while IFS= read -r string; do
+    timestr=`echo $string | egrep -o "\[[0-9]+\.[0-9]+\]"`
+    if [[ ! $timestr ]] then
+        continue
+    fi
+    timestamp=${timestr#"["}
+    timestamp=${timestamp%"]"}
+    sec=`echo $timestamp | cut -d "." -f 1`
+    nano=`echo $timestamp | cut -d "." -f 2`
+    #nanos=$(( $nano /  1000000000 ))
+    #sec=$(( $nanos + $sec ))
+    timestamp=`date -d @"$sec" +"%Y-%m-%d-%H:%M:%S"`
+    #printf 'Got sec:"%s"\n' "$sec"
+    #printf 'Got nano:"%s"\n' "$nano"
+    #printf 'Got timestamp:"%s"\n' "$timestamp"
+    #head=`echo $string | awk -F'$timestr' '{print $1}'`
+    #tail=`echo $string | awk -F'$timestr' '{print $2}'`
+    #printf '%s[%s]%s\n' "$head" "$timestamp" "$tail"
+    echo "${string/"$timestr"/"[${timestamp}.${nano}]"}"
+done