Sometimes, just sometimes, you wish you could just take a look at the defaulttrace.log or one of the other many log files at the O/S level for an SAP AS Java based system.
Except, it’s not that simple. Whilst the file is text based, you’re not able to read the date/time stamp that exists on each line.
Well, here’s a simple couple of methods to do this conversion, which is basically converting from the epoch.
The first method is using a pure Korn Shell (KSH) method, useful for converting maybe one or two values:
dt=1435140894139
echo $(date -d “1970-01-01 ${dt:0:10} seconds”)
This second method uses AWK which makes it much better at converting all values by simpling piping in the original file to see the output:
NOTE: Below I’m searching for entries related to “com.sap.engine.services.httpserver.server.log”.
NOTE 2: The below command is all on one line.
cat responses.0.trc | awk -F# ‘/com.sap.engine.services.httpserver.server.Log/ { print strftime(“%F %T”,substr($4,1,10))”#”$24 }’
