FreeBSD Manual Pages
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://man.freebsd.org/cgi/man.cgi?query=readproctitle&sektion=8&manpath=FreeBSD+12.2-RELEASE+and+Ports>