Re: [Help-bash] Understanding -X of compgen

[Andy Chu]

Three things:

1) The -f flag doesn't take an argument
2) compgen expects a positional argument, which can be empty for the current dir
3) -X removes the matches.  To keep them, add ! as a prefix.

Try:

compgen -f -X '!*.sh' /tmp/

or equivalently

compgen -A file -X '!*.sh' /tmp/

Andy



On Sat, Feb 23, 2019 at 8:16 AM Peng Yu <address@hidden> wrote:
>
> Hi,
>
> I only want to keep files ending with `.sh`. But I don't quite
> understand how -X works. Could anybody show me how to use -X? Thanks.
>
> $ compgen -f /tmp/ -X '*.sh'
> /tmp/lG3BwsdIG9.date
> /tmp/lG3BwsdIG9.sh
>
> --
> Regards,
> Peng
>