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I have tried using rm -f on these files, and I am running as root, so I should be able to delete them. So why does this program leave behind these files and how can I remove them. Here is what the files look like:

-rwxr-xr-x 1 root sys 6180112 Apr 2 23:28 ##libprog.so.4.5.1
-rwxr-xr-x 1 root sys 427384 Apr 2 23:28 ##libprogn.so.1.0.0
-rwxr-xr-x 1 root sys 578912 Apr 2 23:28 ##libprogcacheipc.so.1.0.0
-rwxr-xr-x 1 root sys 225976 Apr 2 23:28 ##libvtsmartcache.so.1.0.0
-rwxr-xr-x 1 root sys 1338920 Apr 2 23:28 ##libprogil.so.1.0.0
-rwxr-xr-x 1 root sys 6180112 Apr 2 23:28 #libprog4.so.4.5.1
Here is the error I get when trying to remove a file:
rm -f /opt/prog/lib/hpux64/##libprog.so.4.5.1 rm: /opt/prog/lib/hpux64/##libprog.so.4.5.1 not removed. Text file busy

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    After doing some googling, I found I can use fuser -fu on the file to find out who is using the file. root is still using it, but I can't see it when running ps -ef. Any ideas why these files are left behind?
    – user6502
    Apr 11, 2011 at 16:13

1 Answer 1

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Besides fuser, another helpful tool for getting information about open files and the processes using them is lsof.

As a linux user I don't know much about hpux, but does ps -ef on that platform show defunct processes? Is there an option to show hidden processes? Are you running ps as root? It sounds like something got borked on your system and perhaps a process died or was killed while it still had disk io calls queued up? Do these files still show as in use after restarting the system?

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  • yes, ps -ef does show defunct processes and there is one on the machine. I am running ps as root. The man page says ps -e should show all processes. Looks like I should talk to the makers of the program to see why the process is going defunct. This was informative. Thanks!
    – user6502
    Apr 11, 2011 at 17:15
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    @user6502: Make sure you read the last posting there. Your problem is not from a defunct process, it's from a live process that's linked with these libraries (they aren't executables, they're shared libraries, so ps won't help). lsof should tell you what these processes are.
    – Gilles 'SO- stop being evil'
    Apr 11, 2011 at 19:50

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