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I find AWK really useful. Here is a one liner I put together to manipulate data.
ls | awk '{ print 'awk ' ''''''' ' {print $1,$2,$3} ' ''''''' ' ' $1 '.old_ext > ' $1 '.new_ext' }' > file.csh I used this AWK to make a script file that would rename some files and only print out selective columns. Anyone know a better way to do this? What are you best AWK one liners or clever manipulations?
The AWK book is full of great examples. They used to be collected for download from Kernighan’s webpage (404s now).