 OT: korn/unix question, for gurus, semaphores |
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| tat2dphreak |
 Feb 23 2007, 02:00 PM
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stoya, stoya, stoya  Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region   |
I am writing a ksh script to remove the semaphores not cleaned up by a unix program... problem is there's a lot of semphores on the box owned by the same users... so I need to seek out and find ONLY the 1 semaphore associated with the process... the process also creates a physical file to link to the semaphore in the tmp dir, if that helps.
is there a ksh version of C's semget functions? maybe something extended with the ipcs command? |
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| fiid |
Feb 23 2007, 05:30 PM
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
lsof can tell you what stuff a running process has... you might be able to use that - although it's not available on all unixes (although it can be installed).
If you use perl instead of ksh, you can probably use the semget functions. I generally recommend using a language like perl anyways since it's much easier to tell if you've made a coding mistake than it is in a shell script. ipcs -p seems to list out semaphores and their owning processes, btw. "man ipcs" will tell you more on what facilities are available. |
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