Re: how to know the files opened by a process

This is a pretty open-ended question. To get some useful answers you're probably going to have to be a bit more specific.

Of course, if you just want access to the functionality of lsof, then you could do something like this:

#!/usr/bin/perl -w
use strict;

my $lsof = "/usr/sbin/lsof -u 'root'";  # Change this to suit

open DATA, "$lsof|" or die "Could not open $lsof:$!\n";

while (<DATA>) {
    print;
}

close DATA;
[download]

Cheers,
Darren :)

Comment on Re: how to know the files opened by a process Download Code

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Re^2: how to know the files opened by a process by swaroop (Beadle) on Dec 26, 2005 at 04:22 UTC
Hi, Thanks.But the problem is , we need to write seperate methods for sun/linux. I'm looking for modules.	[reply]
Re^3: how to know the files opened by a process by vek (Prior) on Dec 26, 2005 at 21:21 UTC
Well, `lsof` does work on multiple operating systems including Linux and Solaris. For example, `lsof` revision 4.74 lists information about files opened by processes for the following UNIX dialects: AIX 5.[123] Apple Darwin 6.x and 7.x for Power Macintosh systems BSDI BSD/OS 4.3.1 for x86-based systems DEC OSF/1, Digital UNIX, Tru64 UNIX 4.0, and 5.1 FreeBSD 4.[2-9], 4.1[01], 5.[012] and 6.0 for x86-based systems FreeBSD 5.[012] and 6.0 for Alpha, AMD64 and Sparc64 based systems HP-UX 11.00 and 11.11 Linux 2.1.72 and above for x86-based systems NetBSD 1.[456] and 2.x for Alpha, x86, and SPARC-based systems NEXTSTEP 3.[13] for NEXTSTEP architectures OpenBSD 2.[89] and 3.[0123456] for x86-based systems OPENSTEP 4.x Caldera OpenUNIX 8 SCO OpenServer Release 5.0.6 for x86-based systems SCO\|Caldera UnixWare 7.1.4 for x86-based systems Solaris 2.6, 8, 9 and 10 [download] The path to where `lsof` is installed my vary slightly but you can modify your code to pick the right one depending on which OS you are on at the time. So McDarren's example should give you what you need. -- vek --	[reply] [d/l] [select]