Re: Glob problem

[Peter Miller <peter.d.miller@oracle.com>]

On 10/22/13 14:02, Brent Briggs wrote:
> Thanks for all the responses. The glob is now being generated properly. However, I am still having a problem getting my loop to run completely through.
>
> pattern=git*
> for entry in $path
> do
>      print -l $entry/$~pattern
> done
>
> Output:
> ----------
> /opt/local/bin/git
> /opt/local/bin/git-credential-osxkeychain
> /opt/local/bin/git-cvsserver
> /opt/local/bin/git-receive-pack
> /opt/local/bin/git-shell
> /opt/local/bin/git-upload-archive
> /opt/local/bin/git-upload-pack
> /opt/local/bin/gitk
> zsh: no matches found: /opt/local/sbin/git*
>
> /opt/local/sbin/ being the second entry in my path.
>
>
> Also tried:
>
> print -l $path/$~pattern

try

pattern=git*(N)
print -l $path/$~pattern

that will tell zsh to ignore globs that don't have any matches.

>
> Output:
> ----------
> zsh: no matches found: /Users/brent/bin/git*
>
> /Users/brent/bin/ being the last entry in my path.
>
> Looks like I need to use a conditional to test if any pattern matches exist, per directory, before trying to print them. I wasn't able to find a solution in the manual that facilitates testing for the existence of pattern matches. I would like to solve this problem using only globbing if possible. I am probably missing something simple.
>
>
>
> On Oct 22, 2013, at 1:05 PM, Philippe Troin<phil@fifi.org>  wrote:
>
>> On Tue, 2013-10-22 at 12:45 -0400, Brent Briggs wrote:
>>
>>> I am simply trying to list all matches for a specified pattern in an
>>> array of directory paths, the $path array for example. Here is my
>>> attempt. Where am I going wrong?
>> Globs are not ran after variable substitution by default.
>> To run filename generation (aka globs) after variable substitution, use
>> $~var.
>>
>> Your example:
>>
>>> pattern=git*
>>> for entry in $path
>>> do
>>>     # Print all files in the path that match the pattern.
>>>     print $entry/$pattern
>>> done
>> Can be rewritten as:
>>
>>         pattern=git*
>>         for entry in $path
>>         do
>>             # Print all files in the path that match the pattern.
>>             print $entry/$~pattern
>>         done
>>
>> It can be simplified further as:
>>
>>         pattern=git*
>>         print $path/$~pattern
>>
>> Phil.
>>