Linux command to find a specific line in file and add new lines below it

Question

I am trying to build a Linux command to find a line in file and add more lines below that line. For example search for "Application" in a file, then get the line where this word is and add three more lines below it. I am currently using the absolute line number as in "sed -i '51icolumn1, column2, column3' test.txt" but if something change in this file I might be adding the text in a wrong place.

Micha Wiedenmann · Accepted Answer · 2014-04-01 22:32:13Z

2

Would

sed -i '/Application/a column1, column2, column3\ncolumn1, column2, column3' test.txt

solve your issue?

edited Apr 1, 2014 at 22:32

answered Mar 26, 2014 at 18:33

Micha Wiedenmann

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2 Comments

Juampa Over a year ago

My problem is when I try to add more than one line after search for the word "Application"

Micha Wiedenmann Over a year ago

Have you tried to use '\n' to separate multiple lines? (I updated my answer.)

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