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Command: intro | Section: 1 | Source: Digital UNIX | File: intro.1.gz
intro(1) General Commands Manual intro(1)
NAME
intro - Introduction to commands
DESCRIPTION
Section 1 describes the commands available for all DIGITAL UNIX users.
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 8.
ERRORS
On termination, each command returns two bytes of status, one supplied
by the system giving the cause for termination and, in the case of nor-
mal 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 indi-
cates 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 apply.
RELATED INFORMATION
Commands: man(1)
Functions: exit(2) delim off
intro(1)