How to count the number of instances of a certain process by canonical path (with arguments)?

Let's say I run the following commands:

sleep 500

/bin/sleep 500

sleep 30

What I'm interested is, how to count the number of instances of the sleep program, with certain arguments (in this case the only argument is 500).

So in the example above, if I count the number of instances of /bin/sleep 500, it should return 2.

I tried this: pgrep -xfc '/bin/sleep 500', but since it exactly matched the argument in the parenthesis, sleep 500 isn't counted.

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

Are you running a system with a /proc filesystem? That makes it easier to find the pathname of each process's executable.

– Mark Plotnick
May 25 '16 at 18:13

@MarkPlotnick Yes, I am

– mythic
May 25 '16 at 18:49

add a comment |

Let's say I run the following commands:

sleep 500

/bin/sleep 500

sleep 30

What I'm interested is, how to count the number of instances of the sleep program, with certain arguments (in this case the only argument is 500).

So in the example above, if I count the number of instances of /bin/sleep 500, it should return 2.

I tried this: pgrep -xfc '/bin/sleep 500', but since it exactly matched the argument in the parenthesis, sleep 500 isn't counted.

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

Are you running a system with a /proc filesystem? That makes it easier to find the pathname of each process's executable.

– Mark Plotnick
May 25 '16 at 18:13

@MarkPlotnick Yes, I am

– mythic
May 25 '16 at 18:49

add a comment |

Let's say I run the following commands:

sleep 500

/bin/sleep 500

sleep 30

What I'm interested is, how to count the number of instances of the sleep program, with certain arguments (in this case the only argument is 500).

So in the example above, if I count the number of instances of /bin/sleep 500, it should return 2.

I tried this: pgrep -xfc '/bin/sleep 500', but since it exactly matched the argument in the parenthesis, sleep 500 isn't counted.

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

Let's say I run the following commands:

sleep 500

/bin/sleep 500

sleep 30

What I'm interested is, how to count the number of instances of the sleep program, with certain arguments (in this case the only argument is 500).

So in the example above, if I count the number of instances of /bin/sleep 500, it should return 2.

I tried this: pgrep -xfc '/bin/sleep 500', but since it exactly matched the argument in the parenthesis, sleep 500 isn't counted.

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

edited 8 mins ago

Rui F Ribeiro

40.1k1479136

asked May 25 '16 at 16:29

mythic

1435

asked May 25 '16 at 16:29

mythic

1435

asked May 25 '16 at 16:29

mythic

1435

Are you running a system with a /proc filesystem? That makes it easier to find the pathname of each process's executable.

– Mark Plotnick
May 25 '16 at 18:13

@MarkPlotnick Yes, I am

– mythic
May 25 '16 at 18:49

add a comment |

Are you running a system with a /proc filesystem? That makes it easier to find the pathname of each process's executable.

– Mark Plotnick
May 25 '16 at 18:13

@MarkPlotnick Yes, I am

– mythic
May 25 '16 at 18:49

Are you running a system with a /proc filesystem? That makes it easier to find the pathname of each process's executable.

– Mark Plotnick
May 25 '16 at 18:13

@MarkPlotnick Yes, I am

– mythic
May 25 '16 at 18:49

add a comment |

3 Answers
3

active

oldest

votes

In your example you can go with:

pgrep -fc 'sleep 500'

It matches both /bin/sleep 500 and sleep 500.

Or if you want to be more precise:

pgrep -fc 'sleep 500$'

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

add a comment |

On GNU system:

$ ps --no-header -C sleep -o args | grep -Ec ' 500( |$)'

2

answered May 25 '16 at 17:08

cuonglm

104k24203302

add a comment |

On systems that support a Linux-like /proc:

#!/bin/sh

if [ $# != 2 ]

then

    echo usage: "$0" pathname commandline_regexp

    exit 1

fi

cd /proc

for p in [0-9]*

do

    exe=$(readlink $p/exe 2>/dev/null)

    if [ "$exe" = "$1" ] &&

        cat $p/cmdline 2>/dev/null | tr '' ' ' | grep -q -- "$2"

    then

        echo match $p

    fi

done

example:

$ sleep 500&

[3] 18280

$ sleep 600&

[4] 18281

$ ./rpgrep /bin/sleep '.*sleep 500 $'

match 18280

$ ./rpgrep /bin/sleep '.*sleep.*00'

match 18280

match 18281

Notes:

the 2>/dev/null and the separate cat process are used to cope with the possibility that processes may disappear while the script is running.

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

add a comment |

Your Answer

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f285453%2fhow-to-count-the-number-of-instances-of-a-certain-process-by-canonical-path-wit%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

In your example you can go with:

pgrep -fc 'sleep 500'

It matches both /bin/sleep 500 and sleep 500.

Or if you want to be more precise:

pgrep -fc 'sleep 500$'

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

add a comment |

In your example you can go with:

pgrep -fc 'sleep 500'

It matches both /bin/sleep 500 and sleep 500.

Or if you want to be more precise:

pgrep -fc 'sleep 500$'

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

add a comment |

In your example you can go with:

pgrep -fc 'sleep 500'

It matches both /bin/sleep 500 and sleep 500.

Or if you want to be more precise:

pgrep -fc 'sleep 500$'

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

In your example you can go with:

pgrep -fc 'sleep 500'

It matches both /bin/sleep 500 and sleep 500.

Or if you want to be more precise:

pgrep -fc 'sleep 500$'

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

edited May 25 '16 at 21:56

answered May 25 '16 at 21:50

lgaggini

41026

answered May 25 '16 at 21:50

lgaggini

41026

answered May 25 '16 at 21:50

lgaggini

41026

add a comment |

On GNU system:

$ ps --no-header -C sleep -o args | grep -Ec ' 500( |$)'

2

answered May 25 '16 at 17:08

cuonglm

104k24203302

add a comment |

On GNU system:

$ ps --no-header -C sleep -o args | grep -Ec ' 500( |$)'

2

answered May 25 '16 at 17:08

cuonglm

104k24203302

add a comment |

On GNU system:

$ ps --no-header -C sleep -o args | grep -Ec ' 500( |$)'

2

answered May 25 '16 at 17:08

cuonglm

104k24203302

On GNU system:

$ ps --no-header -C sleep -o args | grep -Ec ' 500( |$)'

2

answered May 25 '16 at 17:08

cuonglm

104k24203302

answered May 25 '16 at 17:08

cuonglm

104k24203302

answered May 25 '16 at 17:08

cuonglm

104k24203302

answered May 25 '16 at 17:08

cuonglm

104k24203302

add a comment |

On systems that support a Linux-like /proc:

#!/bin/sh

if [ $# != 2 ]

then

    echo usage: "$0" pathname commandline_regexp

    exit 1

fi

cd /proc

for p in [0-9]*

do

    exe=$(readlink $p/exe 2>/dev/null)

    if [ "$exe" = "$1" ] &&

        cat $p/cmdline 2>/dev/null | tr '' ' ' | grep -q -- "$2"

    then

        echo match $p

    fi

done

example:

$ sleep 500&

[3] 18280

$ sleep 600&

[4] 18281

$ ./rpgrep /bin/sleep '.*sleep 500 $'

match 18280

$ ./rpgrep /bin/sleep '.*sleep.*00'

match 18280

match 18281

Notes:

the 2>/dev/null and the separate cat process are used to cope with the possibility that processes may disappear while the script is running.

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

add a comment |

On systems that support a Linux-like /proc:

#!/bin/sh

if [ $# != 2 ]

then

    echo usage: "$0" pathname commandline_regexp

    exit 1

fi

cd /proc

for p in [0-9]*

do

    exe=$(readlink $p/exe 2>/dev/null)

    if [ "$exe" = "$1" ] &&

        cat $p/cmdline 2>/dev/null | tr '' ' ' | grep -q -- "$2"

    then

        echo match $p

    fi

done

example:

$ sleep 500&

[3] 18280

$ sleep 600&

[4] 18281

$ ./rpgrep /bin/sleep '.*sleep 500 $'

match 18280

$ ./rpgrep /bin/sleep '.*sleep.*00'

match 18280

match 18281

Notes:

the 2>/dev/null and the separate cat process are used to cope with the possibility that processes may disappear while the script is running.

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

add a comment |

On systems that support a Linux-like /proc:

#!/bin/sh

if [ $# != 2 ]

then

    echo usage: "$0" pathname commandline_regexp

    exit 1

fi

cd /proc

for p in [0-9]*

do

    exe=$(readlink $p/exe 2>/dev/null)

    if [ "$exe" = "$1" ] &&

        cat $p/cmdline 2>/dev/null | tr '' ' ' | grep -q -- "$2"

    then

        echo match $p

    fi

done

example:

$ sleep 500&

[3] 18280

$ sleep 600&

[4] 18281

$ ./rpgrep /bin/sleep '.*sleep 500 $'

match 18280

$ ./rpgrep /bin/sleep '.*sleep.*00'

match 18280

match 18281

Notes:

the 2>/dev/null and the separate cat process are used to cope with the possibility that processes may disappear while the script is running.

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

On systems that support a Linux-like /proc:

#!/bin/sh

if [ $# != 2 ]

then

    echo usage: "$0" pathname commandline_regexp

    exit 1

fi

cd /proc

for p in [0-9]*

do

    exe=$(readlink $p/exe 2>/dev/null)

    if [ "$exe" = "$1" ] &&

        cat $p/cmdline 2>/dev/null | tr '' ' ' | grep -q -- "$2"

    then

        echo match $p

    fi

done

example:

$ sleep 500&

[3] 18280

$ sleep 600&

[4] 18281

$ ./rpgrep /bin/sleep '.*sleep 500 $'

match 18280

$ ./rpgrep /bin/sleep '.*sleep.*00'

match 18280

match 18281

Notes:

the 2>/dev/null and the separate cat process are used to cope with the possibility that processes may disappear while the script is running.

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

edited May 26 '16 at 14:21

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

answered May 25 '16 at 19:43

Mark Plotnick

18.2k24065

add a comment |

draft saved

draft discarded

Thanks for contributing an answer to Unix & Linux Stack Exchange!

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

搜尋此網誌

Sstrhsrtj