INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

a regex

a regex

(OP)
Hello,
I want a regex (with OR as below) also matching "md" lines in which 3rd column is not a string "active". Is it possible?
https://regex101.com/r/LxD8t2/2








RE: a regex

Hi

Sadly you can not say "not the string" like that. For negation the best option is negative look-ahead assertion : (?!active). But that being a zero-width assertion, you will still need to match whatever is there with something generic, like .+ or .+?. So the 3rd part of you expression would look like something this :

CODE --> expression

md[[:digit:]]+[[:space:]]+:[[:space:]]+(?!active).+?[[:space:]]+raid[[:digit:]]+ 

But in practice I would probably use something different.

Feherke.
feherke.ga

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close