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Need help regarding replacing a part of string

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# 1  
Old 03-17-2008
Need help regarding replacing a part of string
Hi all

suppose i have a string "abacus sabre", i need to replace occurences 'ab' with 'cd' and i need to store this result into same string and i need to return this result from script to the calling function, where as the string is passed from calling function.

i tried like this

mainStr="abacus"
old_word="ab"
new_word="cd"
result=`sed -i s/$old_word/$new_word $mainstr `
return result
# 2  
Old 03-17-2008
Please don't double post questions and continue here:

https://www.unix.com/shell-programmin...lp-needed.html

Regards
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