How to replace a search text from a given line number using sed or awk

Question

A file mytext.txt has in line number 20

<mytext=SO svn=myrepo number=2.1.0>

using SED or AWK I would like to change the line number 20 of mytext.txt to

<mytext=SO svn=myrepo number=2.1.6>

possible duplicate of [bash: replace an entire line in a text file](http://stackoverflow.com/questions/11145270/bash-replace-an-entire-line-in-a-text-file) — fedorqui, May 15 '14 at 14:37
Is it always line # 20 that you want to change OR certain pattern needs to be matched before replacement? — anubhava, May 15 '14 at 14:56

score 0 · Answer 1 · answered May 15 '14 at 14:48

0

awk 'NR==20{$0="NEW TEXT"}7' file

next time do some man sed/awk before post.

answered May 15 '14 at 14:48

Kent

score 0 · Answer 2 · answered May 15 '14 at 15:02

0

with sed:

sed -ri '20 s/2.1.0/2.1.6/g' file

answered May 15 '14 at 15:02

Tiago Lopo

2 Answers2