Re: 2.6.2: "-" or "_", thats the question

Ryan Reich
2004-02-16T14:13:21Z

On Mon, 16 Feb 2004, Harald Dunkel wrote:

> Ryan Reich wrote:
> > Harald Dunkel wrote:
> >
> >>
> >> I am interested in the module file names. 'cat /proc/modules'
> >> should return the correct module names, but for some modules
> >> (like uhci_hcd vs uhci-hcd.ko) '_' and '-' are messed up.
> >
> >
> > According to the modprobe man page, the two symbols are interchangeable.
> >
> I know. But this requires some very ugly workarounds outside
> of module-init-tools. For example, if you want to check
> whether a module $module_name has already been loaded, you
> cannot use
>
> grep -q "^${module_name} " /proc/modules
>
> Instead you have to use a workaround like
>
> x="`echo $module_name | sed -e 's/-/_/g'`"
> cat /proc/modules | sed -e 's/-/_/g' | grep -q "^${x} "
>
> This is inefficient and error-prone.
>
> Maybe somebody has another idea for the workaround,
> but I like the first version.

Well, you can shorten it by using 'tr':

cat /proc/modules | tr _ - | grep -q "^${module_name} "

/proc/modules uses the '_' and I suppose your problem is that your module name
list uses the '-', so this solves both at once.

--
Ryan Reich
ryanr@uchicago.edu