Marko's questions

This

ls -l /var/log | awk '{print $9}' | grep "^[a-z]*\.log."

outputs this:

alternatives.log.1
alternatives.log.10.gz
alternatives.log.2.gz
alternatives.log.3.gz
alternatives.log.4.gz
alternatives.log.5.gz
alternatives.log.6.gz
alternatives.log.7.gz
alternatives.log.8.gz
alternatives.log.9.gz
apport.log.1
apport.log.2.gz
apport.log.3.gz

but this:

ls -l /var/log | awk '{print $9}' | grep "^[a-z]+\.log."

outputs nothing.

Why? I just changed * to +. Isn't it similar? Operator + just needs at least one match, and * zero or more.

how can I allow standard users to connect to wireless network without administrator password? It's simple question. I need any positive answer.