Search the FAQ Archives

3 - A - B - C - D - E - F - G - H - I - J - K - L - M
N - O - P - Q - R - S - T - U - V - W - X - Y - Z
faqs.org - Internet FAQ Archives

Unix - Frequently Asked Questions (3/7) [Frequent posting]
Section - How do I find the process ID of a program with a particular name ... ?

( Part1 - Part2 - Part3 - Part4 - Part5 - Part6 - Part7 - Single Page )
[ Usenet FAQs | Web FAQs | Documents | RFC Index | Cities ]


Top Document: Unix - Frequently Asked Questions (3/7) [Frequent posting]
Previous Document: How do I run ... interactive programs from a shell script ... ?
Next Document: How do I check the exit status of a remote command executed via "rsh"?
See reader questions & answers on this topic! - Help others by sharing your knowledge

3.10) How do I find the process ID of a program with a particular name
      from inside a shell script or C program?

      In a shell script:

      There is no utility specifically designed to map between program
      names and process IDs.  Furthermore, such mappings are often
      unreliable, since it's possible for more than one process to have
      the same name, and since it's possible for a process to change
      its name once it starts running.  However, a pipeline like this
      can often be used to get a list of processes (owned by you) with
      a particular name:

            ps ux | awk '/name/ && !/awk/ {print $2}'

      You replace "name" with the name of the process for which you are
      searching.

      The general idea is to parse the output of ps, using awk or grep
      or other utilities, to search for the lines with the specified
      name on them, and print the PID's for those lines.  Note that the
      "!/awk/" above prevents the awk process for being listed.

      You may have to change the arguments to ps, depending on what
      kind of Unix you are using.

      In a C program:

      Just as there is no utility specifically designed to map between
      program names and process IDs, there are no (portable) C library
      functions to do it either.

      However, some vendors provide functions for reading Kernel
      memory; for example, Sun provides the "kvm_" functions, and Data
      General provides the "dg_" functions.  It may be possible for any
      user to use these, or they may only be useable by the super-user
      (or a user in group "kmem") if read-access to kernel memory on
      your system is restricted.  Furthermore, these functions are
      often not documented or documented badly, and might change from
      release to release.

      Some vendors provide a "/proc" filesystem, which appears as a
      directory with a bunch of filenames in it.  Each filename is a
      number, corresponding to a process ID, and you can open the file
      and read it to get information about the process.  Once again,
      access to this may be restricted, and the interface to it may
      change from system to system.

      If you can't use vendor-specific library functions, and you
      don't have /proc, and you still want to do this completely
      in C, you
      are going to have to do the rummaging through kernel memory
      yourself.  For a good example of how to do this on many systems,
      see the sources to "ofiles", available in the comp.sources.unix
      archives.  (A package named "kstuff" to help with kernel
      rummaging was posted to alt.sources in May 1991 and is also
      available via anonymous ftp as
      usenet/alt.sources/articles/{329{6,7,8,9},330{0,1}}.Z from
      wuarchive.wustl.edu.)

User Contributions:

1
Report this comment as inappropriate
Sep 27, 2021 @ 1:13 pm
Hello ... Im looking a lover..
I love oral sex! Write me - tinyurl.com/yz6aajf4
2
Report this comment as inappropriate
Oct 3, 2021 @ 2:14 pm
Try Your luck and win a FREE $500 or $1000 coupon! - tinyurl.com/yhxaqmng
3
Report this comment as inappropriate
Oct 6, 2021 @ 3:15 pm
Hi baby!! my name is Virginia...
I love oral sex! Write me - is.gd/be2piI
4
Report this comment as inappropriate
Oct 7, 2021 @ 12:00 am
Try Your luck and win a Free Coca-Cola Pack! - tinyurl.com/y58phmar
5
Report this comment as inappropriate
Oct 12, 2021 @ 3:15 pm
WiFiBooster Pro provides you max speed with 300Mbps, no delay for playing game, online transfer files and video chat! Works with Any Router and Device (Smartphone, Computer, Smart tv, etc). Get 50% Off Today! Order Here - is.gd/OdxGOK
6
Report this comment as inappropriate
Oct 18, 2021 @ 3:03 am
Fill out the form and win a Free $500 or $1000 voucher! - tinyurl.com/yf9odcpg
7
Report this comment as inappropriate
Oct 18, 2021 @ 4:16 pm
hey dear!!! my name is Sophia...
I want sex! Here are my photos - is.gd/kZlpA3
8
Report this comment as inappropriate
Oct 27, 2021 @ 4:16 pm
Hi !! my name Emily...
Do you want to see a beautiful female body? Here are my erotic photos - tinyurl.com/yzet8jvr
9
Report this comment as inappropriate
Nov 6, 2021 @ 2:14 pm
heey .. my name Rebecca!!!
I love oral sex! Write me - tinyurl.com/ydnrouzb
10
Report this comment as inappropriate
Dec 3, 2021 @ 7:19 pm
Hi !! my name Maria.
I love sex. Here are my erotic photos - is.gd/eP3qxP
11
Report this comment as inappropriate
Dec 20, 2021 @ 5:05 am
Hi .. Im looking a man!!!
If you want to meet me, I'm here - is.gd/5kUUii
12
Report this comment as inappropriate
Jan 13, 2022 @ 4:16 pm
heey baby!!! my name Margaret..
I want sex! Write me - chilp.it/bf4d037
13
Rapinia
Report this comment as inappropriate
Feb 5, 2022 @ 12:12 pm
Hi...?! I'm my name is Name.FirstName and I have
A
Good opportunity for Target.Name, just follow this link to learn Remote Zoom Hypnosys ::) (Many eyes for better hypnosys)
14
Rodawg Thepuss
Report this comment as inappropriate
Feb 5, 2022 @ 12:12 pm
Hi, my name is Rodawg Thepuss,Third of the name.
I am here to present you a new and exciting opportunity to take advantage of others with Hypnosis through TeamsMEET.Hypnosis Hypnosis Hypnosis Hypnosis Hypnosis Hypnosis Hypnosis .

This is a record access board which can hold 30 seconds information about all the Hypnosis teams in Singapore. These teams have made numerous activities in the whole of Singapore, which has led to many mass hypnosiemicy readings.

This is the fastest way you can fast way of getting your classmates' goal on term project , S P MOAR!

so join Hypnosis Team in TeamMeets.net to become team's master key. On my life I swear by the many success stories i have shared above.

To be free of all problems, if you will join my Virtual Talk seminar. No one could ever stop you from achieving success. Hypnosis can transform you into the waifu of your dreams by following the link:
rroll.to/wxjWSC
15
Luc
Report this comment as inappropriate
Apr 12, 2022 @ 11:11 am
Hello Folks,

For old Linux distributions I could suggest this web site - linux-distros.com

Comment about this article, ask questions, or add new information about this topic:




Top Document: Unix - Frequently Asked Questions (3/7) [Frequent posting]
Previous Document: How do I run ... interactive programs from a shell script ... ?
Next Document: How do I check the exit status of a remote command executed via "rsh"?

Part1 - Part2 - Part3 - Part4 - Part5 - Part6 - Part7 - Single Page

[ Usenet FAQs | Web FAQs | Documents | RFC Index ]

Send corrections/additions to the FAQ Maintainer:
tmatimar@isgtec.com (Ted Timar)





Last Update March 27 2014 @ 02:12 PM