Dear Joan,
by use of the common scripts, the file catalina.out will contain the console
output (stdout/tderr) of the *JVM* process and -- if not configured in another
way -- of the applications. Therefore, you have to deal with the features of
output formatting of current JVMs. Or -- as me -- you might pipe this file
descriptors through a tiny script that will prepend a timestamp in a format of
your choice. This will have the advantage that it also handle "console" output
of Java application; despite of the fact that using stdout/stderr instead of a
java logging mechanism is a very bad style.
If you don't need to process thousands of lines per second, a simple shell
script may do the job:
while read line; do echo "`date -Ins` $line"; done
To avoid "double-stamping", you may add an heuristic check of the incoming
line; please adjust the RegExpr to your neeeds
while read line; do [[ ! "$line" =~ ^\d\d\d\d ]] && echo -n "[`date
-Ins`] "; echo $line; done
Guido
