selecting a subset of an array

selecting a subset of an array

[Wataru Kagawa]

Sorry for another basic question, but how do I exclude a particular  
element from an array by using its name in a parameter expansion?   
For example, I would like to select everything except for  
'foo1:output file' from the following array, using only 'foo1' in the  
expansion.

_list=( 'foo1:output file' 'foo2:input file' 'foo3:output figs'  
'foo4:input figs' )

Help is much appreciated.


Wataru Kagawa

Re: selecting a subset of an array

[djh]

Kagawa-san,
    try using ${array-namae:#pattern}    Here's the explanation I found 
in the manual.

--> If the parameter  is an ARRAY the matching array elements are removed.
      For the opposite effect use the `(M)' flag to remove the 
non-matched elements).

Darel Henman

--------------------

Wataru Kagawa wrote:

> Sorry for another basic question, but how do I exclude a particular  
> element from an array by using its name in a parameter expansion?   
> For example, I would like to select everything except for  
> 'foo1:output file' from the following array, using only 'foo1' in the  
> expansion.
>
> _list=( 'foo1:output file' 'foo2:input file' 'foo3:output figs'  
> 'foo4:input figs' )
>
> Help is much appreciated.
>
> Wataru Kagawa

Re: selecting a subset of an array

[djh]

Sorry, in my explanation I used a hypen in the parmater name inthe 
example and later realized that  you can not use a hyphen in a parmater 
name like I did.

So for your example:   ${_list:#foo1*}

> Kagawa-san,
>    try using ${array-namae:#pattern}    Here's the explanation I found 
> in the manual.
>
>>
>> _list=( 'foo1:output file' 'foo2:input file' 'foo3:output figs'  
>> 'foo4:input figs' )
>

Re: selecting a subset of an array

[Wataru Kagawa]

Hi Darel,

Thanks!  I was almost there.  I missed the colon mark.

Wataru Kagawa