CODEWITHSUNDEEP
regex
Joseph Bisaillon
Joseph Bisaillon

Reputation: 173

Regex : grab a single character in a line without grabbing instances of it in other line

I'm trying to grab line 2, a single character ; that keeps reoccurring during the generation of one of my config files. It's breaking my builds. I need to replace the ; with an empty character or just remove the line entirely. The issue I'm having is grabbing that character and none of the other ; characters.

- HOSTS all
;
jjlkasd;
 - aslkdjasd;

Upvotes: 1

Views: 26

Answers (1)

dawg
dawg

Reputation: 103754

Given:

$ echo "$inp"
- HOSTS all
;
jjlkasd;
 - aslkdjasd;

You can use sed:

$ echo "$inp" | sed 's/^;$//'
- HOSTS all

jjlkasd;
 - aslkdjasd;

Or if there is any possibility of leading or trailing spaces:

$ echo "$inp" | sed 's/^\s*;\s*$//'
- HOSTS all

jjlkasd;
 - aslkdjasd;

Or, if you want to delete the entire line:

$ echo "$inp" | sed '/^\s*;\s*$/d'
- HOSTS all
jjlkasd;
 - aslkdjasd;

Upvotes: 1

Related Questions