Generating a Config File

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# 1  
Generating a Config File


I want to append some configuration statements to the existing file in unix to it's 3 line , 7th line and 28 line.

There is a file generated by our system job, to this I need to add some lines as mentioned below.

DIR=/usr/CDR - line 3
Source=/usr/src - line 7
Target=/usr/tgt - line 28

Please suggest how can I add these about to the specific file generated by other process.

# 2  
awk ' NR == 3 {
                $0 = $0 RS "new line to be added"
} NR == 7 {
                $0 = $0 RS "new line to be added"
} NR == 28 {
                $0 = $0 RS "new line to be added"
} 1 ' config_file

# 3  
Try alternatively:
awk     '1
         NR==3 {print "DIR=/usr/CDR"}
         NR==7 {print "Source=/usr/src"}
         NR==28{print "Target=/usr/tgt"}
        ' file

This User Gave Thanks to RudiC For This Post:

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