FUSER(ADM) UNIX System V
Name
fuser - identify processes using a file or filesystem
Syntax
/etc/fuser [-ku] files | filesystems [-]
[[ -ku ] files | filesystems]
Description
The fuser command outputs the process IDs of the processes
that are using the files or local filesystems specified as
arguments. (fuser does not work on remote (NFS)
filesystems.) Each process ID is followed by a letter code,
interpreted as follows: if the process is using the file as
1) its current directory, the code is c;
2) the parent of its current directory (only when the
file is being used by the system), the code is p; or
3) its root directory, the code is r.
For block-special devices with mounted filesystems, all
processes using any file on that device are listed. For all
other types of files (text files, executables, directories,
devices, etc.), only the processes using that file are
reported.
The following options may be used with fuser:
-u the user login name, in parentheses, also follows the
process ID.
-k the SIGKILL signal is sent to each process. Since this
option spawns kills for each process, the kill messages
may not show up immediately [see kill(S)].
If more than one group of files are specified, the options
may be respecified for each additional group of files. A
lone dash cancels the options currently in force; then, the
new set of options applies to the next group of files.
The process IDs are printed as a single line on the standard
output, separated by spaces and terminated with a single new
line. All other output is written on standard error.
You cannot list processes using a particular file from a
remote filesystem mounted on your machine. You can only use
the filesystem name as an argument.
Any user with permission to read /dev/kmem and /dev/mem can
use fuser. Only the super-user can terminate another user's
process
Files
/unix for system name list
/dev/kmem for system image
/dev/mem also for system image
See Also
mount(ADM), ps(C), kill(S), signal(S).
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