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What is index?

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# 1  
Old 12-26-2006
What is index?
hi, Smilie
In a shell script i came accross the following lines

1.for i in ` find /home/oracle -name ch'
2.do
3.echo $i
4.idx=`expr index $i .`
5.done

Here iam not able to understand the porpose of the word "index" in line 4.

any help ?



cheers
RRK
# 2  
Old 12-26-2006
expr index <string1> <string2>

returns the starting position of string2 in string1. - number of characters into string1.
# 3  
Old 12-26-2006
yes,Thats true. Smilie

cheers
RRK
# 4  
Old 12-26-2006
Error
Quote:
Originally Posted by ravi raj kumar
hi, Smilie
In a shell script i came accross the following lines

1.for i in ` find /home/oracle -name ch'
2.do
3.echo $i
4.idx=`expr index $i .`
5.done

Here iam not able to understand the porpose of the word "index" in line 4.

any help ?



cheers
RRK
Hi..
the key word index in the 4th line specifies the occurence of the searching element ie., ch as per your code... I am not sure abt my answer.But still I guess this will help you to get some clue..

Regds,
Roopa
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