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I have one command (/usr/lib/R/exec/R pathtoDifferentFiles) being executed with many different arguments (file names). Looking at htop, I see at least 30 processes created,

I want to kill all of them at the same time.

Is there a way to kill processes that apply a command starting with a pattern? (/usr/lib/R/exec/R)

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what's the command for a single file? –  Avinash Raj May 19 '14 at 12:22
/usr/lib/R/bin/exec/R --slave --no-restore --file=fileName --args. I have many different possible arguments (each process takes a different argument name) –  teaLeef May 19 '14 at 12:24

3 Answers 3

up vote 8 down vote accepted

Try using the pkill command:

pkill --full /usr/lib/R/bin/exec/R

From the pkill man page:

pkill will send the specified signal (by default SIGTERM) to each process.


      -f, --full
        The pattern is normally only matched against the process name.
        When -f is set, the full command line is
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It doesn't work. In fact, my command starts with usr/lib/R/exec/R for each process, but then each process has a different name since my script calls different arguments –  teaLeef May 19 '14 at 12:27
Could you please attach in a the result of ps -aef with the 30 processes? –  Sylvain Pineau May 19 '14 at 12:33 –  teaLeef May 19 '14 at 12:36
Thanks, please retry with the updated pattern –  Sylvain Pineau May 19 '14 at 12:38

Try this command,

ps aux | awk '/\/usr\/lib\/R\/exec\/R/ {print $2}' | xargs kill


pa aux | awk '/\/usr\/lib\/R\/bin\/exec\/R/ {print $2}' | xargs kill
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Because in your question, you mentioned /usr/lib/R/exec/R but in your comment you mentioned /usr/lib/R/bin/exec/R –  Avinash Raj May 19 '14 at 12:39
got: unexpected character '\' –  teaLeef May 19 '14 at 12:43
please post the command you tried along with the output in pastebin –  Avinash Raj May 19 '14 at 12:46 –  teaLeef May 19 '14 at 12:56
now it is working. Sorry about the typos –  teaLeef May 19 '14 at 13:14

You can use :

ps -ef| awk '/\/usr\/lib\/R\/bin\/exec\/R/ {print $2}' |xargs kill -9
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How can I specify the pattern when I have different arguments names? /usr/lib/R/exec/R is common for all the processes, but then the command has different names for each process –  teaLeef May 19 '14 at 12:26
try this command now –  nux May 19 '14 at 12:29
I get: ps -ef|awk '/usr/lib/R/bin/exec/R/{print $2}' |xargs kill -9 awk: line 1: syntax error at or near { Usage: kill pid ... Send SIGTERM to every process listed. kill signal pid ... Send a signal to every process listed. kill -s signal pid ... Send a signal to every process listed. kill -l List all signal names. kill -L List all signal names in a nice table. kill -l signal Convert between signal numbers and names. –  teaLeef May 19 '14 at 12:33
try the code now –  nux May 19 '14 at 12:36
it doesn't do anything –  teaLeef May 19 '14 at 12:44

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