Question

So I’m looking for a pattern like this:

size=’0x0′

In a log file, but I’m only interested in large sizes (4 digits or more). The following regex works great in EditPadPro (nice tool BTW)

size='0x[0-9a-fA-F]{4,} 

But the same RegEx does not work in awk – seems like the repetition {4,} is messing it up. Same with WinGrep – any idea from the RegEx gurus? Thanks!

Answer 1

You can in fact use awk, with a caveat.

As mentioned on the following page, you need a special command-line option (–re-interval) to make it work out, since the interval expression (the {4,}) is not in the standard:

http://kansai.anesth.or.jp/gijutu/awk/gawk/gawk_28.html

So in the end, you’ll want something that looks like:

awk --re-interval '/size='0x[0-9a-fA-F]{4,}'/' thefile 

This will print out the lines that match.