introduction to general commands (tools and
Section one of the manual contains most of the commands which comprise the
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
while others simply set the status to an arbitrary value >0 (typically 1).
Tutorials in the UNIX User's Manual Supplementary
manual page appeared in
Version 6 AT&T UNIX