extglob (extended pattern matching bash)
Sometimes you want to match filenames but the standard shell
expansion won't do it. For example, you want all the files
but not the ones that end with .bak - there's no easy way
to do that with standard wildcards, but bash can turn on
"extended globbing". You do that with " shopt -s extglob".
With that in place, you can do things like:
# everything but .html, .jpg or ,gif files
ls -d !(*.html|*gif|*jpg)
# list file9, file22 but not fileit
# begins with apl or un only
ls -d +(apl*|un*)
The lead-in characters recognized when rxtglob is set are (from
the man page):
Matches zero or one occurrence of the given patterns
Matches zero or more occurrences of the given patterns
Matches one or more occurrences of the given patterns
Matches exactly one of the given patterns
Matches anything except one of the given patterns
If this page was useful to you, please help others find it:
More Articles by Tony Lawrence
- Find me on Google+
Have you tried Searching this site?
Unix/Linux/Mac OS X support by phone, email or on-site:
This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. We appreciate comments and article submissions.
Publishing your articles here
Jump to Comments
Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.
Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.
We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.