INTRO(1) BSD Reference Manual INTRO(1)
intro - introduction to general commands (tools and utilities)
The manual pages in section one contain most of the commands which comprise the BSD user environment. Some of the commands included in sec- tion 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, format- ted 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.
man(1), intro(2), intro(3), intro(4), intro(5), intro(6), intro(7), intro(8), intro(9) /usr/share/doc/usd/ - UNIX(R) User's Supplementary Documents (USD) /usr/share/doc/psd/ - UNIX(R) Programmer's Supplementary Documents (PSD) /usr/share/doc/smm/ - UNIX(R) System Manager's Manual (SMM) /usr/share/doc/papers/ - various papers /usr/share/info/ - Texinfo format documentation (GNU)
An intro manual appeared in Version 6 AT&T UNIX. MirBSD #10-current August 13, 2021 1