z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

Description
Option
Usage notes
Examples
The fuser command writes to standard output the process IDs of all processes
running on the local system that have one or more named files open. file is the
pathname of the file for which information is to be reported, or, if the –c options is
used, the pathname of a file on the file system for which information is to be
reported.
The fuser command writes additional information to standard error, such as the
user name of the process and a character indicating how the process is using the
file. fuser only reports on local processes, not remote ones.
–c fuser reports on all open files within the file system that the specified file is
a member of
–f fuser reports on only the named files. This is the default.
–k fuser sends the SIGKILL signal to each local process (with the exception of
the fuser process and parent processes of fuser). Only a superuser can
terminate a process that belongs to another user. This option is a z/OS
extension.
–u fuser writes to standard error the user name associated with each process
ID written to standard output.
fuser will write the process ID for each process to standard output. fuser also
writes the following to standard error:
v The pathname of each file specified on the command line.
v An indicator of how the process is using this file (written after the process ID):
–c The process is using the file as its current directory.
–r The process is using the file as its root directory.
If no character follows the PID, this means that the process has the file open.
v When the –u option is specified, fuser writes the user name corresponding to the
process’ real user ID.
1. To list the process numbers of local processes using the /etc/magic file, enter:
fuser /etc/magic
which will give you the following output:
/etc/magic: 67109274 144
2. To display the user names associated with the processes accessing the file
/etc/magic:
fuser -u /etc/magic
Your output would be:
/etc/magic: 67109274(Steve) 144(Fred)
3. To terminate all of the processes using a given file system, enter either the
mount point name or the name of a file in that file system:
fuser -ku /u/home
fuser
Chapter 2. Shell command descriptions 291