regex Archives - Page 10 of 10

I often need to kill a process during programming. The way I do it now is:...

This question already has answers here: Regular expression to match a line that doesn’t contain a word (31 answers) Closed 2 years ago. ...

Obviously, you can use the | (pipe?) to represent OR, but is there a way to represent AND as well? Specifically, I’d like ...

How can I check if a given string is a valid URL address? My knowledge of regular expressions is basic and doesn’t allow ...

I’m trying to put together a comprehensive regex to validate phone numbers. Ideally it would handle international formats, but it must handle US ...

Is it possible to detect a valid regular expression with another regular expression? If so please give example code below. 9 s 9 ...

I have been trying to work out the syntax for this command: grep ! error_log | find /home/foo/public_html/ -mmin -60 OR: grep '...

How are non-capturing groups, i.e., (?:), used in regular expressions and what are they good for? 1 18 Let me try to explain ...

Over the years I have slowly developed a regular expression that validates most email addresses correctly, assuming they don’t use an IP address ...

I know it’s possible to match a word and then reverse the matches using other tools (e.g. grep -v). However, is it possible ...