Replacing a field on a particular line. Pls HELP!

[networkguy]

I am trying to replace a particular field in a particular line. There are 2 choices: 1) line begins with name "eric"; 2) line number 2.
This is a script that replaces a field. How can I point it to the specific line???

#! /bin/ksh
read username?"Please enter your username:"
read password?"Please enter your password:"
nawk -v user=$username -v passwd=$password 'BEGIN {FS=";";OFS=";"} { $12=passwd;print }' input > output

Eric

 

[grega]

This should work as is, but may require a little tweaking.

#! /bin/ksh
read username?"Please enter your username:"
read password?"Please enter your password:"
nawk -v user=$username -v passwd=$password 'BEGIN {FS=";";OFS=";"} NR==2 {$12=passwd;print} $1=="eric" {$12=passwd;print}' input > output

Greg.

 

[grega]

Or to shorten it slightly, you could do:

#! /bin/ksh
read username?"Please enter your username:"
read password?"Please enter your password:"
nawk -v user=$username -v passwd=$password 'BEGIN {FS=";";OFS=";"} NR==2 || $1=="eric" {$12=passwd;print}' input > output

Greg.