Howdy,
I wonder if someone could help with a script I'm trying to write.
What this script does is rebuild a src.rpm in every possible architecture, and report
if it's successful or not, as well as log the output.
While writing it I discovered that hitting ^C gave my the prompt back, but didn't kill
all the sub-processes. If I did ps -u I'd still see rpm, make, gcc and other things
running away:
root 19918 19917 0 17:40 pts/1 00:00:00 rpm --rebuild --target=i686
glibc-2.1.3-22.src.rpm
root 19941 19918 0 17:40 pts/1 00:00:00 /bin/sh -e /var/tmp/rpm-tmp.82743
root 20743 19941 0 17:40 pts/1 00:00:00 make -r CFLAGS=-mpentium
-D__USE_STRING_INLINES -fstrict-aliasing -m
root 20744 20743 0 17:40 pts/1 00:00:00 make -r PARALLELMFLAGS=-s CVSOPTS= -C
.. objdir=/usr/src/redhat/BUIL
root 4487 20744 6 17:47 pts/1 00:00:01 make -s -C string subdir_lib
root 5419 4487 0 17:47 pts/1 00:00:00 egcs ../sysdeps/generic/_strerror.c -c
-D__USE_STRING_INLINES -O3 -W
root 5422 5419 0 17:47 pts/1 00:00:00
/usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/cpp -lang-c -I../inc
I've read some shell scripting tutorials and in one article
(http://www.linuxgazette.com/issue58/okopnik.html)
I read about trapping ^C. I'm hoping that I can use trap to kill all the
sub-processes, but the tutorial didn't go far enough to get through my thick skull.
I gathered that I need something like this:
function cleanup ()
{
stty intr "" # Ignore 'Ctrl-C'
echo "Trapped"
stty intr ^C # Back to normal
exit
}
trap 'cleanup' 2
And that the "2" at the end of the trap line means use trap #2 as seen in "trap -l"
(i.e. SIGINT)
However I suspect:
1. that I don't have everything correct int the function definition
2. that SIGINT isn't the correct thing to use (maybe SIGKILL, but the article editor
said SIGKILL isn't trappable, whatever that means)
Can anyone show me what I need here, in order to kill all the subprocesses?
Thanks a ton in advance,
----------------------------------------------------
Jonathan Wilson
System Administrator
Cedar Creek Software
http://www.cedarcreeksoftware.com
Central Texas IT
http://www.centraltexasit.com
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