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28 .\" @(#)intro.8 8.2 (Berkeley) 12/11/93
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37 .Nd "introduction to system maintenance and operation commands"
39 This section contains information related to system operation
41 It describes commands used to create new file systems,
43 verify the integrity of the file systems,
47 maintain system backups,
49 and recover files when disks die an untimely death,
54 .\" for the specific architecture the system is running on should be
55 .\" consulted when formatting disks and tapes.
56 Network related services like
64 should be consulted to understand how to interpret system
67 All commands set an exit status.
68 Its value may be tested
69 to see if the command completed normally.
70 Unless otherwise noted (rare), the value 0 signifies successful
71 completion of the command, while a value >0 indicates an error.
72 Some commands attempt to describe the nature of the failure by using
73 error codes defined in
75 or set the status to arbitrary values >0 (typically 1), but many
76 such values are not described in the manual.
80 section manual page appeared in