intro - introduction to general commands (tools and utilities)
The manual pages in section one contain most of the commands
the BSD user environment. Some of the commands included in section
one are text editors, command shell interpreters, searching
tools, file manipulation commands, system status commands,
copy commands, mail commands, compilers and compiler tools,
output tools, and line printer commands.
All commands set a status value upon exit which may be tested to see if
the command completed normally. The exit values and their
explained in the individual manuals. Traditionally, the
value 0 signifies
successful completion of the command.
man(1), intro(2), intro(3), intro(4), intro(5), intro(6),
Tutorials in the UNIX User's Supplementary Documents:
An intro manual appeared in Version 6 AT&T UNIX.
OpenBSD 3.6 December 30, 1993
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