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Re^4: One liner to subtract by 2

by Anonymous Monk
on Jul 24, 2013 at 14:28 UTC ( #1046132=note: print w/ replies, xml ) Need Help??


in reply to Re^3: One liner to subtract by 2
in thread One liner to subtract by 2

Thanks Guys

the header is on the first line of my file so I'm doing the following

perl -pe 's/(0-9{10})$/sprintf("%010d", $1-2)/e if $. ==1' TONYFILE.DAT

for some reason it's not changing the count...it's still 496

any idea what i'm missing here?


Comment on Re^4: One liner to subtract by 2
Re^5: One liner to subtract by 2
by choroba (Abbot) on Jul 24, 2013 at 14:30 UTC
    This outputs the new contents to the standard output. If you want to change the file, you have to add the -i flag:
    perl -i~ -pe ...
    لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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