Unable to kill sleeping process

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LEARN ABOUT V7

ps

PS(1)							      General Commands Manual							     PS(1)

NAME

       ps - process status

SYNOPSIS

       ps [ aklx ] [ namelist ]

DESCRIPTION

       Ps  prints  certain  indicia about active processes.  The a option asks for information about all processes with terminals (ordinarily only
       one's own processes are displayed); x asks even about processes with no terminal; l asks for a long listing.  The  short  listing  contains
       the process ID, tty letter, the cumulative execution time of the process and an approximation to the command line.

       The long listing is columnar and contains

       F      Flags  associated with the process.  01: in core; 02: system process; 04: locked in core (e.g. for physical I/O); 10: being swapped;
	      20: being traced by another process.

       S      The state of the process.  0: nonexistent; S: sleeping; W: waiting; R: running; I: intermediate; Z: terminated; T: stopped.

       UID    The user ID of the process owner.

       PID    The process ID of the process; as in certain cults it is possible to kill a process if you know its true name.

       PPID   The process ID of the parent process.

       CPU    Processor utilization for scheduling.

       PRI    The priority of the process; high numbers mean low priority.

       NICE   Used in priority computation.

       ADDR   The core address of the process if resident, otherwise the disk address.

       SZ     The size in blocks of the core image of the process.

       WCHAN  The event for which the process is waiting or sleeping; if blank, the process is running.

       TTY    The controlling tty for the process.

       TIME   The cumulative execution time for the process.

       The command and its arguments.

       A process that has exited and has a parent, but has not yet been waited for by the parent is marked <defunct>.  Ps makes an educated  guess
       as  to  the file name and arguments given when the process was created by examining core memory or the swap area.  The method is inherently
       somewhat unreliable and in any event a process is entitled to destroy this information, so the names cannot be counted on too much.

       If the k option is specified, the file /usr/sys/core is used in place of /dev/mem.  This is used for postmortem	system	debugging.   If  a
       second argument is given, it is taken to be the file containing the system's namelist.

FILES

       /unix	     system namelist
       /dev/mem      core memory
       /usr/sys/core alternate core file
       /dev	     searched to find swap device and tty names

SEE ALSO

       kill(1)

BUGS

       Things can change while ps is running; the picture it gives is only a close approximation to reality.
       Some data printed for defunct processes is irrelevant

								       PDP11								     PS(1)

Shell Programming and Scripting