[unix command] su vs su - - Think Do, I Will

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[unix command] su vs su -

2006/07/20 14:58:27瀏覽749｜回應0｜推薦0

man page 有喔

-l Simulate a full login. The environment is discarded except for
HOME, SHELL, PATH, TERM, and USER. HOME and SHELL are modified
as above. USER is set to the target login. PATH is set to
``/bin:/usr/bin''. TERM is imported from your current environ-
ment. Environment variables may be set or overridden from the
login class capabilities database according to the class of the
target login. The invoked shell is the target login's, and su
will change directory to the target login's home directory.
Resource limits and session priority are modified to that for the
target account's login class.

- (no letter) The same as -l.

Sincerely C.S.Julius
Think Do, I Will
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