selecting modules for kernel compilation automatically

[Mischa Baars]

Hi,

Can someone please tell me why this does work:


for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do echo 
$(basename $i .ko.xz); done;

While this doesn't:

for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do grep 
$(basename $i .ko.xz) /proc/modules; done;
for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do 
lsmod | grep $(basename $i .ko.xz); done;

Thanks,
Mischa.

Re: selecting modules for kernel compilation automatically

[Mischa Baars]

On Sat, 2019-10-12 at 13:50 +0200, Mischa Baars wrote:
> Hi,
> 
> Can someone please tell me why this does work:
> 
> 
> for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do 
> echo $(basename $i .ko.xz); done;
> 
> While this doesn't:
> 
> for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do 
> grep $(basename $i .ko.xz) /proc/modules; done;
> for i in $(find /lib/modules/5.3.0-next-20190924/ -type f | grep scsi); do 
> lsmod | grep $(basename $i .ko.xz); done;
> 
> Thanks,
> Mischa.

Never mind, I've probably been smoking too much.

Thanks,
Mischa.

Command grouping

[Mischa Baars]

Hi,

Perhaps to better have a look at this mail, than the previous mail.

In trying to group commands, in this case compiler commands, I found some 
peculiarities while trying different combinations of the 'Internal Field 
Separator'
and the 'Parameter Expansion' operator ${parameter@P}.

Perhaps someone can tell me if this is the behaviour that should have been 
expected or that something is broken.

Thanks,
Mischa.


goodworx.tar.xz
Description: application/xz-compressed-tar

Re: Command grouping

[Chet Ramey]

On 10/12/19 9:02 AM, Mischa Baars wrote:
> Hi,
> 
> Perhaps to better have a look at this mail, than the previous mail.
> 
> In trying to group commands, in this case compiler commands, I found some 
> peculiarities while trying different combinations of the 'Internal Field 
> Separator'
> and the 'Parameter Expansion' operator ${parameter@P}.

I haven't looked at this in any depth, but you should realize that running

declare IFS=$(printf ' \t\n')

will result in IFS being set to space and tab, since command substitution
removes the trailing newline. Maybe that will make a difference.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRUc...@case.eduhttp://tiswww.cwru.edu/~chet/