04-26-2005
Changing the column for a row in a text file and adding another row
Hi,
I want to write a shell script which increments a particular column in a row from a text file and then adds another row below the current row with the incremented value .
For Eg .
if the input file has a row :
abc xyz lmn 89 lm nk o p
I would like the script to create something like this :
abc xyz lmn 89 lm nk o p
abc xyz lmn 90 lm nk o p
Incrementing column 4th and creating a new row for it .
awk ' { ++$4 } print $0 ' inputfile
Now this will increment the column but I dont know how to create a new row without disturbing the original row .
Infact I would like to get 10 rows like that , with 4th column of each row getting incremented . I guess once I know how it can be done for 1 row, i can put that in for loop .
Any pointers or help would be appreciated .
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