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@danmero. lol. At least I don't think perl has been added to the kernel yet.

@pludi Well, ok. I know it's not bash only, but what i meant was that awk is standard in the UNIX kernel, so it's a standard kernel solution. I don't have to make anyone running this script install...

@pludi thanks for your excellent reply. That code worked great. Could you please explain how it works, in particular the
-i.bak -ne 'printf "%d,%s", $., $_' part.

@Chubler_XL, I know cat dosn't...

Hey, I am working on some file comparisons with csv files. csv files use "," as the field separator and I want to do a

cat -n file > file

to put the file numbers at the beginning of the lines,...