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Operating Systems Linux Fedora Clueless re Java: /opt vs. /usr/local Post 302879799 by fpmurphy on Sunday 15th of December 2013 11:46:03 AM
Old 12-15-2013
A word of caution regarding the FHS. It is quite an old document. Many distributions, led by Fedora, are moving away from this standard as far as /usr/bin, /bin, /usr/sbin, /sbin and other OS-specifc directories are concerned.

However the intended purpose for /usr/local and /opt has not changed over the years.
 

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

NAME
svscanboot - starts svscan(8) in the /service directory, with output and error messages logged through readproctitle(8). svscanboot is available in daemontools 0.75 and above. SYNOPSIS
svscanboot DESCRIPTION
svscanboot runs the pipeline svscan /service 2>&1 | readproctitle service errors: ..... with 400 dots. The last 400 bytes of error messages from svscan(8) will be visible to ps(1) through readproctitle(8). svscanboot sets $PATH to /command:/usr/local/bin:/usr/local/sbin: /bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin (all in one line, no space) and clears all other environment variables. Program writers are encouraged to use globally allocated names in /command. SEE ALSO
supervise(8), svc(8), svok(8), svstat(8), svscan(8), readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64n(8), tai64nlocal(8), setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8), ps(1) http://cr.yp.to/daemontools.html http://cr.yp.to/slashcommand.html svscanboot(8)
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