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[ifup]

hi,

today, I checked the size of my home directory, hmmm, it's over 940M.
cause I don't have a good habit to make clean every time finishing a
compiling, there should be much space wasted.  i think there must a easy
way to remove all .o files in one command line, just don't know how.

find -> exec rm 

thanks,

jack, btw, do you know a good site to learn regular expression?