intro(1) [freebsd man page]

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.  Traditionally, the value 0 signifies
     successful completion of the command, while a value >0 indicates an error.  Some commands attempt to describe the nature of the failure by
     using exit codes as defined in sysexits(3), while others simply set the status to an arbitrary value >0 (typically 1).

SEE ALSO

     apropos(1), man(1), intro(2), intro(3), sysexits(3), intro(4), intro(5), intro(6), intro(7), security(7), intro(8), intro(9)

     Tutorials in the UNIX User's Manual Supplementary Documents.

HISTORY

     The intro manual page appeared in Version 6 AT&T UNIX.

BSD
								 October 21, 2001							       BSD

intro(1)						      General Commands Manual							  intro(1)

NAME

       intro - Introduction to commands

DESCRIPTION

       Section 1 describes the commands available for all Tru64 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
       normal termination, one supplied by the program.  For more information, see exit(2).  The first byte is 0 for normal termination; the  sec-
       ond  byte is customarily 0 for successful execution. A nonzero status indicates a problem, such as erroneous parameters, or bad or inacces-
       sible 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.

SEE ALSO

       Commands:  man(1)

       Functions:  exit(2)

																	  intro(1)