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Linux Awk insert text at specific line number


One liner command for Awk to insert a new string or text at a specific line number on a file.

awk 'NR==3{print "new line text at row 3"}1' original_file.txt > modified_file.txt


'NR==3 --insert string or data at line number 3
"}1' -- number 1 (can be any number) means to append the new text or string
> modified_file.txt -- redirect the output to a new file

To find out more, type this at the terminal.

                info awk
                info print
                man awk
                man print

Or you can redirect the output of info and man to a file for offline viewing.


Check out links below for other examples of awk command.

http://quickbytesstuff.blogspot.sg/2016/02/linux-awk-simple-example.html

http://quickbytesstuff.blogspot.sg/2016/05/basic-awk-usage-tutorial.html


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