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intro(1) [bsd man page]

INTRO(1)						      General Commands Manual							  INTRO(1)

NAME
intro - introduction to commands DESCRIPTION
This section describes publicly accessible commands in alphabetic order. Certain distinctions of purpose are made in the headings: (1) Commands of general utility. (1C) Commands for communication with other systems. (1G) Commands used primarily for graphics and computer-aided design. N.B.: Commands related to system maintenance used to appear in section 1 manual pages and were distinguished by (1M) at the top of the page. These manual pages now appear in section 8. SEE ALSO
Section (6) for computer games. How to get started, in the Introduction. DIAGNOSTICS
Upon 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, see wait and exit(2). The former byte is 0 for normal termination, the latter is cus- tomarily 0 for successful execution, nonzero to indicate troubles such as erroneous parameters, bad or inaccessible data, or other inabil- ity to cope with the task at hand. It is called variously `exit code', `exit status' or `return code', and is described only where special conventions are involved. 7th Edition April 29, 1985 INTRO(1)

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INTRO(1)						    BSD General Commands Manual 						  INTRO(1)

NAME
intro -- introduction to general commands (tools and utilities) DESCRIPTION
Section one of the manual contains most of the commands which comprise the BSD user environment. Some of the commands included in section one are text editors, command shell interpreters, searching and sorting tools, file manipulation commands, system status commands, remote file copy commands, mail commands, compilers and compiler tools, formatted 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 meanings are explained in the individual manuals. Traditionally, the value 0 signifies successful completion of the command. SEE ALSO
man(1), intro(2), intro(3), intro(4), intro(5), intro(6), intro(7), intro(8), intro(9) The Regents of the University of California, UNIX User's Manual Supplementary Documents, University of California, Berkeley, http://www.netbsd.org/docs/bsd/lite2/usd.html, June, 1993. HISTORY
An intro(1) manual appeared in Version 6 AT&T UNIX. BSD
May 5, 2010 BSD
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