Chapter 4 - killall & pkill
Hi there! I am an old dog learning new tricks, but isn't below formula wrong?
Chapter 4 - killall & pkill
pkill sends a signal to a process using selection criteria:
$ pkill [-signal] [options] [pattern]
I think signal and options should be reversed. What do you guys think?
Comments
-
"-signal" is an option so the order is irrelevant. It is just showing special attention to the -signal option. Just try it (before posting). The following lines all do the same thing:
pkill -44 -u 1000 cat
pklll cat -u 1000 -44
pkill -u 1000 cat -44etc, order is irrelvant, even where the pattern goes
2 -
Thanks for explaining! Since I'm a fish, I tend to take instructions very literally, plus order helps me remember this stuff.
I think the explanation in the course threw me off, where I saw -u as an option, libby as process name, and foobar as identificator within the process. That being said, I think [-signal] was the one that confused me the most. Nevertheless, you are right. I will test in the future before asking any questions here.course expl:
$ pkill [-signal] [options] [pattern]
For example:
$ pkill -u libby foobar
will kill all of libby's processes with a name of foobar.
0 -
Hi,
You always can do 'man
' to see the available information of the associated man pages about the command. In this case 'man pkill' shows the following: PGREP(1) User Commands PGREP(1)
NAME
pgrep, pkill - look up or signal processes based on name and other attributesSYNOPSIS
pgrep [options] pattern
pkill [options] patternDESCRIPTION
pgrep looks through the currently running processes and lists the process IDs which match the selection criteria to stdout. All the criteria have to match. For example,[...]
OPTIONS
-signal
--signal signal
Defines the signal to send to each matched process. Either the numeric or the symbolic signal name can be used. (pkill only.)[...]
Regards,
Luis.1
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