Really nice! I'm an old UNIX guy so I just used the brute force method. I did forget to add that I kill syslogd and crond before I run Ardour. Jan On Sun, 2003-09-14 at 03:13, James Cameron wrote: > On Sat, Sep 13, 2003 at 03:09:26PM -0500, Jan Depner wrote: > > killall -9 autorun 2>/dev/null > > killall -9 artsd 2>/dev/null > > killall -9 jackd 2>/dev/null [and so forth ...] > > This sequence can be simplified and made a little more safe. > > a) use "--quiet" instead of "2>/dev/null", so that any failure to run > killall is not hidden, yet it won't complain if there are no > processes with that name, > > b) use "--signal KILL" instead of "-9", to ease later understanding, > > c) use "--wait" as well, so that potential timing issues are excluded > (if you did the sequence of killall's at higher priority than the > processes you have killed, then it is theoretically possible for you > to start new processes before the processes you killed have actually > died, and these new processes may therefore not run as expected ... > the technical term is "race condition".) > > d) test for and use just the default SIGTERM signal, as there are some > programs that need to undo some of the work they have done, and a > SIGKILL (the -9) allows them no chance to do so. (An example are > programs that create permanent shared memory segments or other IPC > arcania; and then only delete them properly if not SIGKILLed.) > > A rule of thumb is to prove to yourself that SIGTERM doesn't work > before adopting SIGKILL. > > e) place the commands in a file in /usr/local/bin or $HOME/bin, include > that directory in your PATH, make sure the file is executable > "chmod +x killit", and add a "set -v", so that when you run it you can > immediately see it's progress. If you've never written a file > containing commands to execute, have a go, you'll love the idea. > > #!/bin/sh > set -v > killall --quiet --wait --signal KILL autorun > killall --quiet --wait --signal KILL artsd > killall --quiet --wait --signal KILL jackd > rm -rf /tmp/jack* > killall --quiet --wait --signal KILL /usr/lib/ardour/ardourx > killall --quiet --wait --signal KILL oafd > killall --quiet --wait --signal KILL xbiff > killall --quiet --wait --signal KILL envy24control > killall --quiet --wait --signal KILL /usr/bin/aplay > > f) and to really go all the way, do some "factoring" to make it easier > to add new programs ... although this is no use if programs need > different signals: > > #!/bin/sh > set -x > for PROCESS in autorun artsd jackd /usr/lib/ardour/ardourx oafd \ > xbiff envy24control /usr/bin/aplay; do > killall --quiet --wait --signal KILL $PROCESS > done > rm -rf /tmp/jack* > > > References: > > man 7 signal > man 1 killall > man 1 bash > tested on Debian GNU/Linux and Red Hat 9 > > -- > James Cameron mailto:quozl@xxxxxxxxxxxxx http://quozl.netrek.org/
