On Mon, 14 Nov 2011, Florin Iucha wrote:

> On Mon, Nov 14, 2011 at 01:18:39PM -0600, Mike Miller wrote:
>
>> This is a simple problem that I'm sure someone here can solve.  I was 
>> thinking about making the Roku aliases recommended in an earlier post. 
>> These would all be two letters long beginning with 'r'.  I wouldn't 
>> want the new commands to interfer with anything that already exists, 
>> but what's the best way to check?
>>
>> If I go to the command prompt and type r[TAB] I see a list of 174 
>> options for completion, but some are directories and many consist of 
>> more than two characters.  It looks like "rm" is the only two-character 
>> command beginning with "r", but what I want is a simple command that 
>> lists all of the two-character commands in my path that begin with "r". 
>> How can I get that list?
>
>   for pp in `echo $PATH | tr ":" "\n"`; do ls $pp | grep '^r.\>' ; done


There has to be a better way!  ;-)  I could do it with a for loop but was 
hoping for something more direct, maybe using "find".

Also, that doesn't guarantee that the file is executable.  It would also 
be good to see the path to the file instead of just the filename.

Mike