On 17 September 2013 22:28, Matthew Cengia <mattcen@gmail.com> wrote:
On 2013-09-17 20:42, Russell Coker wrote:
On Tue, 17 Sep 2013, Jason White <jason@jasonjgw.net> wrote:
Matthew Cengia <mattcen@gmail.com> wrote:
mattcen@isis:tmp$ shopt -s nullglob mattcen@isis:tmp$ ls *.mkv *.mp4 *.avi a.mkv b.mp4
Excellent.
Yes, Matthew's suggestion works really well for interactive use. I couldn't work out how to make it run from a Makefile though.
GNU makefiles have a magical $(wildcard *.avi) function that I don't fully understand, but which may do what you want if you do some research into it.
Gnu makefile syntax might look like this if in the body of the makefile: found_files := $(wildcard *.mkv) $(wildcard *.mp4) $(wildcard *.avi) ifdef found_files some_command $(found_files) endif but this will break if the filenames contain whitespace, because make intrinsically treats whitespace as a separator and there's no way to avoid that using $(wildcard), or when using the make $(shell) function. So if the filenames might contain whitespace, don't even consider using these make functions, filenames with whitespace must be handled entirely in shell commands invoked by make, without ever trying to store them in make variables.