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How to insert string at particular 4th line in text file

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# 8  
Old 08-05-2009
. Life is learning process. Awk has ... method to handle " '. zaxxon has solution for that.

awk -v line4="<switch IP='' port='5900' user='testc' password='asdfrp' Code='8'>" '
NR == 4 {
             print line4 ; next
            { print $0 }
' infile


awk -v line4="<switch IP='' port='5900' user='testc' password='asdfrp' Code='8'>" '
NR == 4 {
            { print $0 }
' infile

Works fine. Tested.
# 9  
Old 08-05-2009
You awk may not support -v option
try nawk,gawk

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