intro - Introduction to commands
Section 1 describes the commands available for all Tru64
Some reference pages in this section may contain suffixes
to allow their files to exist with those of other reference
pages having the same base name and section number.
When used, suffixes are made up of one to four letters.
See the man(1) reference page for more information on suffixes.
Commands related to system maintenance appear in Section
On termination, each command returns two bytes of status,
one supplied by the system giving the cause for termination
and, in the case of normal termination, one supplied
by the program. For more information, see exit(2). The
first byte is 0 for normal termination; the second byte is
customarily 0 for successful execution. A nonzero status
indicates a problem, such as erroneous parameters, or bad
or inaccessible data. The status value is called variously
exit code, exit status, or return code, and is described
explicitly on reference pages only when special conventions
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