GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v7 |
|
 |
intro(1) |
 |
intro − introduction to commands
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. | ||
|
(1M) |
Commands used primarily for system maintenance. |
The word ’local’ at the foot of a page means that the command is not intended for general distribution.
Section (6) for computer games.
How to get started, in the Introduction.
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 customarily 0 for successful execution, nonzero to indicate troubles such as erroneous parameters, bad or inaccessible data, or other inability 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.
|
intro(1) | |