Regex to exclude substring

Question

I want to write regex that:

1. pass string starting with /scripts/my_app/ (/scripts/my_app/xxxx.sh or /scripts/my_app/yyyyy/xxxz.sh)
2. exclude another strings starting with /scripts/ (/scripts/another_string/xxxx.sh or /scripts/some_string/yyyyy/xxxz.sh)
3. pass any others strings like /xxxx/yyyy/zzzzz/qqqq.sh or /aaaa/bbbb/ccc.sh

Something like this ^[(\/scripts\/my_app\/)|(?!\/scripts\/)].* doesn't work.

Answer 1

You can use

^/(?:scripts/my_app/|(?!scripts/)).*

Explanation

• ^/ Start of string and match /
• (?: Non capture group
  • scripts/my_app/ Match literally
  • | Or
  • (?!scripts/) Negative lookahead, assert not scripts/
• ) Close non capture group
• .* Match 0+ times any character

Regex demo

Another option is using a double negative lookahead

^/(?!scripts/(?!my_app/)).*

Regex demo