Sep 072010
 

It’s possible to use even more complicated syntax with regular expressions:

I used this in my FTP script for safety surveillor.

case “$1? in
+(start|run) ) /usr/app/startup-script ;;
@([Ss])top ) /usr/app/stop-script ;;
esac

?(pattern1 | pattern2 | … | patternn)
zero or one occurrence of any pattern

*( pattern1 | pattern2 | … | patternn)
zero or more occurrences of any pattern

@( pattern1 | pattern2 | … | patternn)
exactly one occurrence of any pattern

+( pattern1 | pattern2 | … | patternn)
one or more occurrence of any pattern

!( pattern1 | pattern2 | … | patternn)
all strings except those that match any pattern