[SOLVED] sed plus sign doesn't work

Issue

I'm trying to replace /./ or /././ or /./././ to / only in bash script. I've managed to create regex for sed but it doesn't work.

variable="something/./././"
variable=$(echo $variable | sed "s/\/(\.\/)+/\//g")
echo $variable # this should output "something/"

When I tried to replace only /./ substring it worked with regex in sed \/\.\/. Does sed regex requires more flags to use multiplication of substring with + or *?

Solution

Use -r option to make sed to use extended regular expression:

$ variable="something/./././"
$ echo $variable | sed -r "s/\/(\.\/)+/\//g"
something/

Answered By - falsetru

Answer Checked By - Terry (WPSolving Volunteer)