man : envdir(8)
envdir - runs another program with environment modified according to
files in a specified directory.
envdir d child
d is a single argument. child consists of one or more arguments.
envdir sets various environment variables as specified by files in the
directory named d. It then runs child.
If d contains a file named s whose first line is t, envdir removes an
environment variable named s if one exists, and then adds an
environment variable named s with value t. The name s must not contain
=. Spaces and tabs at the end of t are removed. Nulls in t are changed
to newlines in the environment variable.
If the file s is completely empty (0 bytes long), envdir removes an
environment variable named s if one exists, without adding a new
envdir exits 111 if it has trouble reading d, if it runs out of memory
for environment variables, or if it cannot run child. Otherwise its
exit code is the same as that of child.
supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8),
readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64n(8),
tai64nlocal(8), setuidgid(8), envuidgid(8), softlimit(8), setlock(8)
May 22, 2015