sed with argument variables in shell script

Asked Jan 25 '17 at 05:52

Active Jan 25 '17 at 06:03

Viewed 429 times

I want to write a script that extract lines from line n to m of the input.

doit.sh:

 sed -n -e '$1,$2p' input.txt


 ./doit.sh 3 10

But it gave me an error sed: -e expression #1, char 2: unknown command: `2'. What went wrong?

edited Jan 25 '17 at 06:03

Cyrus

asked Jan 25 '17 at 05:52

pandagrammer

1

`$1` and `$2` won't be expanded within single quotes. – Biffen Jan 25 '17 at 05:53
1

To use string interpolation you need to use double quotes – SwiftMango Jan 25 '17 at 05:53

0 Answers0