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bash kill process by call

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
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1

I am using bash to start several instances of one python program, like this:

python example.py -id $i

where $i is the id given to the instance. All the processes are started on the same user, and imagine I am unable of keeping track of the process IDs. Would it be possible to kill the specific instance just by the command (with id) that called it? For example something like pkill 'python example.py -id 2 which obviously doesn't work.

command-line process kill

share|improve this question

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

bumped to the homepage by Community♦ 2 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Try pkill -f python example.py -id 2. The man page for pkill explains the -f flag (see man pkill). And generally, it's a good idea to quote your variables ("$i" instead of just $i).
  
  – roaima
  Jul 25 '16 at 21:42
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If the processes are running under the current shell, then the jobs command and then kill %2 or whatnot may be of use, to use the shell job control functionality.
  
  – thrig
  Jul 25 '16 at 22:21
  

  
  
  
  

add a comment | 

1

I am using bash to start several instances of one python program, like this:

python example.py -id $i

where $i is the id given to the instance. All the processes are started on the same user, and imagine I am unable of keeping track of the process IDs. Would it be possible to kill the specific instance just by the command (with id) that called it? For example something like pkill 'python example.py -id 2 which obviously doesn't work.

command-line process kill

share|improve this question

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

bumped to the homepage by Community♦ 2 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Try pkill -f python example.py -id 2. The man page for pkill explains the -f flag (see man pkill). And generally, it's a good idea to quote your variables ("$i" instead of just $i).
  
  – roaima
  Jul 25 '16 at 21:42
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If the processes are running under the current shell, then the jobs command and then kill %2 or whatnot may be of use, to use the shell job control functionality.
  
  – thrig
  Jul 25 '16 at 22:21
  

  
  
  
  

add a comment | 

I am using bash to start several instances of one python program, like this:

python example.py -id $i

where $i is the id given to the instance. All the processes are started on the same user, and imagine I am unable of keeping track of the process IDs. Would it be possible to kill the specific instance just by the command (with id) that called it? For example something like pkill 'python example.py -id 2 which obviously doesn't work.

command-line process kill

share|improve this question

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

python example.py -id $i

share|improve this question

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

share|improve this question

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

edited Jul 25 '16 at 21:56

Gilles

549k13011161631

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

asked Jul 25 '16 at 21:27

Jeroen SmuldersJeroen Smulders

61

2 Answers
2

active

oldest

votes

0

kill $(ps -ef | grep '[s]earch-string' | sed -re 's/[[:blank:]]+/t/g' | cut -f2)

1. 
   ps -ef : gets process list with arguments


2. 
   grep : filters for the record you want the [] is to stop grep finding its self.


3. 
   sed -re 's/[[:blank:]]+/t/g' : converts space to a single tab


4. 
   cut -f2 : extracts the pid field

share|improve this answer

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @roaima's comment may be a simpler answer.
  
  – ctrl-alt-delor
  Jul 25 '16 at 21:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Not really portable: ps: unknown option -- f usage: ps [-AaceHhjkLlmrSTuvwx] [-M core] [-N system] [-O fmt] [-o fmt] [-p pid] [-t tty] [-U username] [-W swap]
  
  – Kusalananda♦
  Jul 30 '16 at 13:14
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ps is not very portable, there is one for posix, one for bsd, one for system-v. The Gnu one looks like it tries to be compatible with all. If you want help with ps then you will have to tell us which OS and version of ps.
  
  – ctrl-alt-delor
  Aug 11 '16 at 16:25
  

  
  
  
  

add a comment | 

0

Using pkill:

pkill -fx 'python example.py -id 2'

The -f option to pkill makes matching happen against the full command line, not just the process name, and -x forces the pattern to match the full command exactly, not just any substring of it (similarly as with grep -x). You'll need -x to avoid matching command lines that possibly had further digits at the end, like 20 or 203.

share|improve this answer

edited Mar 20 at 18:20

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

add a comment | 

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0

kill $(ps -ef | grep '[s]earch-string' | sed -re 's/[[:blank:]]+/t/g' | cut -f2)

1. 
   ps -ef : gets process list with arguments


2. 
   grep : filters for the record you want the [] is to stop grep finding its self.


3. 
   sed -re 's/[[:blank:]]+/t/g' : converts space to a single tab


4. 
   cut -f2 : extracts the pid field

share|improve this answer

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @roaima's comment may be a simpler answer.
  
  – ctrl-alt-delor
  Jul 25 '16 at 21:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Not really portable: ps: unknown option -- f usage: ps [-AaceHhjkLlmrSTuvwx] [-M core] [-N system] [-O fmt] [-o fmt] [-p pid] [-t tty] [-U username] [-W swap]
  
  – Kusalananda♦
  Jul 30 '16 at 13:14
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ps is not very portable, there is one for posix, one for bsd, one for system-v. The Gnu one looks like it tries to be compatible with all. If you want help with ps then you will have to tell us which OS and version of ps.
  
  – ctrl-alt-delor
  Aug 11 '16 at 16:25
  

  
  
  
  

add a comment | 

0

kill $(ps -ef | grep '[s]earch-string' | sed -re 's/[[:blank:]]+/t/g' | cut -f2)

1. 
   ps -ef : gets process list with arguments


2. 
   grep : filters for the record you want the [] is to stop grep finding its self.


3. 
   sed -re 's/[[:blank:]]+/t/g' : converts space to a single tab


4. 
   cut -f2 : extracts the pid field

share|improve this answer

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @roaima's comment may be a simpler answer.
  
  – ctrl-alt-delor
  Jul 25 '16 at 21:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Not really portable: ps: unknown option -- f usage: ps [-AaceHhjkLlmrSTuvwx] [-M core] [-N system] [-O fmt] [-o fmt] [-p pid] [-t tty] [-U username] [-W swap]
  
  – Kusalananda♦
  Jul 30 '16 at 13:14
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ps is not very portable, there is one for posix, one for bsd, one for system-v. The Gnu one looks like it tries to be compatible with all. If you want help with ps then you will have to tell us which OS and version of ps.
  
  – ctrl-alt-delor
  Aug 11 '16 at 16:25
  

  
  
  
  

add a comment | 

kill $(ps -ef | grep '[s]earch-string' | sed -re 's/[[:blank:]]+/t/g' | cut -f2)

1. 
   ps -ef : gets process list with arguments


2. 
   grep : filters for the record you want the [] is to stop grep finding its self.


3. 
   sed -re 's/[[:blank:]]+/t/g' : converts space to a single tab


4. 
   cut -f2 : extracts the pid field

share|improve this answer

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

share|improve this answer

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

answered Jul 25 '16 at 21:46

ctrl-alt-delorctrl-alt-delor

12.4k52663

0

Using pkill:

pkill -fx 'python example.py -id 2'

The -f option to pkill makes matching happen against the full command line, not just the process name, and -x forces the pattern to match the full command exactly, not just any substring of it (similarly as with grep -x). You'll need -x to avoid matching command lines that possibly had further digits at the end, like 20 or 203.

share|improve this answer

edited Mar 20 at 18:20

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

add a comment | 

0

Using pkill:

pkill -fx 'python example.py -id 2'

The -f option to pkill makes matching happen against the full command line, not just the process name, and -x forces the pattern to match the full command exactly, not just any substring of it (similarly as with grep -x). You'll need -x to avoid matching command lines that possibly had further digits at the end, like 20 or 203.

share|improve this answer

edited Mar 20 at 18:20

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

add a comment | 

Using pkill:

pkill -fx 'python example.py -id 2'

The -f option to pkill makes matching happen against the full command line, not just the process name, and -x forces the pattern to match the full command exactly, not just any substring of it (similarly as with grep -x). You'll need -x to avoid matching command lines that possibly had further digits at the end, like 20 or 203.

share|improve this answer

edited Mar 20 at 18:20

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

pkill -fx 'python example.py -id 2'

share|improve this answer

edited Mar 20 at 18:20

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442

answered Mar 20 at 18:14

Kusalananda♦Kusalananda

142k18266442