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How to get the location of word in a string

 
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# 1  
Old 03-07-2008
How to get the location of word in a string
How to use instr function in awk ?
to get the location


a) for example instr('productiondata_12','data',1) to get the location of data using awk.

b) for example instr('sampledata_rev_12','rev',1) to get the location of data
and reaplce with "org" using awk.



can anyone help



Thanks in advance
# 2  
Old 03-07-2008
The sub() function in awk replaces part of strings
Code:
echo 'productiondata_12' | awk 'sub("data","org",$0)'

# 3  
Old 03-07-2008
To get the starting location of substring "data" use match()...

Code:
echo 'production_data12' | awk '{print match($0, "data")}'
12

and to replace substring "data" with "org" use sub()...

Code:
echo 'production_data12' | awk '{sub("data", "org"); print $0}'
production_org12

# 4  
Old 03-07-2008
index() also does find the start of the first occurrence of a string.
 
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