Code uncomment a line in a text file that matches a word:
sed -i "/<My-word>/s/^#//g" file-name
We are using sed, this works in most Linux/Unix distributions (including Linux docker containers)
- -i edit files in place
- /<My-word>/ the pattern or word you wanted to match
- /^#/ Pattern you wanted to replace, example: line starting with a # “^#”
- // replace it with an empty character (or delete it)
- file-name the name of your file this operation needs to be done
Demo to uncomment local hosting of codetryout.com, We will just delete the beginning # here.
$ cat /etc/hosts #127.0.0.1 codetryout.com
Let us uncomment it using sed
$ sed -i "/codetryout/s/^#//g" /etc/hosts
$ cat /etc/hosts 127.0.0.1 codetryout.com
Hope it helps, with your Linux scripts or configuration files!