LXer: Don’t issue Direct Shutdown or Halt in Unix and Linux – Examples
 

Published at LXer:

Multiuser systems such as Unix should never be just “shut off”. Active users connected to the system are rightfully miffed if their terminals die without warning. Even if the users have all logged out and gone home, there may be background jobs and daemons ticking away. Daemons get mad if their processes are suddenly curtailed.A less obvious danger lays in the way the Unix file system works.

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