AWK question

paraiso · 05-12-2005, 07:00 AM

Code:

 
read x
awk '$2== $x {print $1}' list_file

awk doesn't accept the x argument, why ?

Cheers

jkobrien · 05-12-2005, 08:19 AM

Try...

awk '$2 == XVAR {print $1}' XVAR=$x list_file

XVAR can be anything you like.

paraiso · 05-12-2005, 09:06 AM

Thanks a lot jkobrien! that was exactly the answer to my problem. Do you know if it's possible with awk to override the case sensitivity for the variable entered by the user($x)?

Thanks

jkobrien · 05-12-2005, 09:13 AM

Check out the awk manpages. There are two string functions, toupper and tolower, that could help you with that.

paraiso · 05-12-2005, 09:25 AM

I'm looking for something similar to the -i option from grep.

Thanks again for taking the time to answer

Tinkster · 05-12-2005, 02:37 PM

And you'll find that in the man-page, too. Highly recommended
reading, even though it's admittedly easier (not necessarily faster)
to have the LQ members do the information extraction for you.

Cheers,
Tink