Question

I have a Bash script which replaces a PHP constant, e.g. define('xxxx',....); with desired one.

by:

sudo sed -E -i "" "s/^(define).*(${2})[\'|\"].*/${3}/g" "$file"

The issue is that on Ubuntu it’s failing due to extra space after i.

-i ""

If I remove that space it will work on Ubuntu but will not work on MacOS, e.g. giving an error.

sed: 1: "../config.php ...": invalid command code

What are the options for me to work this command across the *nix peacefully?

Thank you in advance for your time and knowledge.

Answer 1

sudo perl -pi -e "s/^(define).*(${2})[\'|\"].*/${3}/g" "$file"

I suspect you really mean ['\"], though.