[SOLVED] Why doesn't `\d` work in regular expressions in sed?

Issue

I am trying to use \d in regex in sed but it doesn't work:

sed -re 's/\d+//g'

But this is working:

sed -re 's/[0-9]+//g'

Solution

\d is a switch not a regular expression macro. If you want to use some predefined "constant" instead of [0-9] expression just try run this code:

s/[[:digit:]]+//g

Answered By - Kamil

Answer Checked By - Katrina (WPSolving Volunteer)