[ILUG] Sed/tex processing Question

rory.winston at gmail.com rory.winston at gmail.com
Mon Mar 9 17:53:00 GMT 2009


Hi All

I have a sed question: currently I am using sed to preprocess some garbage  
collection log files produced by Java.
There are 10 pieces on information on every line that I would like to  
extract. I have just knocked up a large and ugly sed command to do this:

# Typical line
# 7.181: [GC 7.181: [ParNew: 6193K->101K(6528K), 0.0031050 secs]  
8470K->2692K(64832K), 0.0031680 secs]

$ sed -n "/GC/{s/^\([0-9]\+\.[0-9]\+\): \[GC \([0-9]\+\.[0-9]\+\): \[ParNew
: \([0-9]\+\)K->\([0-9]\+\)K(\([0-9]\+\)K), \([0-9]\+\.[0-9]\+\) secs\]  
\([0-9]\+\)K->\([0-9]\+\)K(
\([0-9]\+\)K), \([0-9]\+\.[0-9]\+\) secs\]/\1,\2,\3,\4,\5,\6,\7,\8,\9/gp}"  
logfile

This has a fatal flaw, in that I have exhausted the maximum number of  
backreferences available. Does anyone know a better way to do this?

Thanks
Rory



More information about the ILUG mailing list