convert month from Aaa to xx in little script with awk

Question

I am trying to report on the number of files created on each date. I can do that with this little one liner:

ls -la foo*.bar|awk \'{print $7, $6}\'|sort|uni         


        

Answer 1

Here's the idiomatic way to convert an abbreviated month name to a number in awk:

$ echo "Feb" | awk '{printf "%02d\n",(index("JanFebMarAprMayJunJulAugSepOctNovDec",$0)+2)/3}'
02

$ echo "May" | awk '{printf "%02d\n",(index("JanFebMarAprMayJunJulAugSepOctNovDec",$0)+2)/3}'
05

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