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readproctitle(8)	    System Manager's Manual	      readproctitle(8)

NAME
       readproctitle  -	 maintains  an automatically rotated log in memory for
       inspection by ps(1).

SYNOPSIS
       readproctitle L D

DESCRIPTION
       L consists of any number	of arguments.  D is one	argument consisting of
       at least	five dots.

       readproctitle reads data	into the end of	D, shifting D to the  left  to
       make  room. This	means that the most recent data	is visible to process-
       listing tools such as ps(1).  readproctitle always leaves three dots at
       the left	of D.

       For example, if

	readproctitle io errors: ....................

       reads the data

	fatal error xyz
	warning	abc

       then its	command-line arguments change to

	readproctitle io errors: ... xyz!warning abc!

       with a newline character	in place of each !. Process-listing tools typ-
       ically show the newline character as ? or \n.

       readproctitle exits when	it reaches the end of input.

       Beware that most	implementations	of ps(1)  have	small  argument-length
       limits. These limits apply to the total length of readproctitle L D.  I
       have not	seen a system with a limit below 512 bytes.

SEE ALSO
       ps(1), envdir(8), envini(8), envuidgid(8), fghack(8), multilog(8), pgr-
       phack(8),  setlock(8),  setuidgid(8),  setuser(8), softlimit(8),	super-
       vise(8),	 svc(8),   svok(8),   svscan(8),   svscanboot(8),   svstat(8),
       tai64n(8), tai64nlocal(8)

							      readproctitle(8)

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