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check index of a string by finding a letter in it

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# 1  
Old 01-24-2012
check index of a string by finding a letter in it
i would like to search for a letter in a string and get its index position.
example:
Code:
name='john'

pos=$(expr index $name o)

the result will be equal to 2 (2nd position)

how do you make this thing not case sensitive?
example:
Code:
name='john'

pos=$(expr index $name O)

the capitalization is the issue.



Moderator's Comments:
Mod Comment Use code tags, thanks.
Last edited by zaxxon; 01-24-2012 at 06:34 AM.. Reason: code tags
# 2  
Old 01-24-2012
Please use code tags next time, thanks.

Code:
pos=$(expr index $name [oO])

This User Gave Thanks to zaxxon For This Post:
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