Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
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
       supervise(8),  svc(8),  svok(8),	 svstat(8),  svscanboot(8), svscan(8),
       fghack(8), pgrphack(8), multilog(8), tai64n(8),	tai64nlocal(8),	 setu-
       idgid(8), envuidgid(8), envdir(8), softlimit(8),	setlock(8), ps(1)

							      readproctitle(8)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=readproctitle&sektion=8&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help