How can I understand this?
 

Hello,
will anybody give an interpretation of the match sentence like that? /^[^#]/, the purpose is to match lines without # as its first character. I just want to know the how it works.

The first "^" means: at the start of a line.
The [^#] means: any character EXCEPT a "#" because when ^ is the first character inside [these brackets] it means NOT the next character(s).

Sasha

PS - look up "man 7 regex" or "man regex" or Google "regular expressions" for much more ;)

Is this related to your question back in August? Are you still working in the same place?

What books and tutorials have you been using?

thanks
 

Thank you for asking. In deed, I had solved that problem sooner after i started a question in this forum. All what I want to do is just trying to know more about it since i never had any background in linux and i surely have to use it occasionally. This question now is just what came to me in a sudden. I really want to read some good tutorials when time is allowed if you can give some recommendation.
thank you again.

In addition to what was recommended in August:

Bash Guide for Beginners---free at http://tldp.org

Linux in a Nutshell from O'Reilly