FUSER(1M) (System Administration Utilities) FUSER(1M)
NAME
fuser - identify processes using a file or file structure
SYNOPSIS
/etc/fuser [-ku] files | resources [-] [[-ku] files |
resources]
DESCRIPTION
fuser outputs the process IDs of the processes that are
using the files or remote resources specified as arguments.
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.
When the process is executing the file, the code is t, when
the process is sleeping on a receive descriptor (RFS), the
code is s, and when it is a server, the code is S. For
block special devices with mounted file systems, all
processes using any file on that device are listed. For
remote resource names, all processes using any file
associated with that remote resource (Remote File Sharing)
are reported. (fuser cannot use the mount point of the
remote resource; it must use the resource name.) 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(2)].
If more than one group of files are specified, the options
may be respecified for each additional group of files. A
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FUSER(1M) (System Administration Utilities) FUSER(1M)
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 resource mounted on your machine. You can only use
the resource 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 namelist
/dev/kmem for system image
/dev/mem also for system image
SEE ALSO
mount(1M).
ps(1) in the User's Reference Manual.
kill(2), signal(2) in the Programmer's Reference Manual.
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