case conversion in bash script??
© August 2006 anonymous
Author: anonymous
Date: Wed Aug 16 07:34:38 2006
Subject: case conversion in bash script??
I am writing a bash script.
Lets say,
VAR="Rakesh"
Now I want to convert the content of VAR ($VAR) to lowercase. How can I do in bash.
i.e if I echo $VAR, I should get 'rakesh' not 'Rakesh'
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Wed Aug 16 09:59:26 2006: 2397 TonyLawrence
new=`echo $old | tr '[A-Z' '[a-z]'`
In other words, it has nothing to do with Bash: you could do this in any shell that allows backtick or some other way to accept the output of external cammands.
new=$(echo $old | tr '[A-Z' '[a-z]')
is a "Bash" solution, but the work is still done by "tr".
Wed Aug 16 13:25:15 2006: 2398 anonymous
One can also use awk for the same:-
new = echo $old | awk '{print tolower($0)}'
~rakesh
Mon Jun 8 07:10:38 2009: 6466 anonymous
little correction
new=$(echo $old | tr '[A-Z]' '[a-z]')
you missed the ']'
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