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DᴀʀᴛʜVᴀᴅᴇʀ
Asked: 2013-12-19 09:06:53 +0800 CST

How to sed two words in a line and add before and after?

  • 772

I was curious to know if there is a better way to sed two words and add a line before and after them.

I learned how from grymoire but I wanted to know if there was a better way to do:

#!/bin/sh
sed '
/foo/,/bar/ {
i\
Add this line before
a\
Add this line after
}'

What I am trying to do is find two words on one line, in this case foo and bar and then add something on the line before and the line after.

If its not to much trouble or off-topic, can some recommend in the comments a few other sites to read on sed other than grymoire?

bash

1 Answers

  1. Best Answer

    awk is easier, IMO

    awk '
    /foo/ && /bar/ {
        print "Add this line before"
        print
        print "Add this line after"
        next
    }
    {print}
' file
    • 1