Getting Help
Perhaps the most important tools on the command line are those that you can use to get help. Table A.1 lists a few of these important tools. Table A.1. Using Terminal-Based Help Systems | COMMAND | GENERAL USAGE | DESCRIPTION |
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| apropos | apropos STRING | Searches the NAME field of all manual pages. Same as man -k [string]. | | info | info [OPTIONS] INFO_PAGE | Displays the information pages for the specified command. | | man | man [OPTIONS] MANPAGE | Displays the manual pages for the specified command, configuration file, system call, and so on. Common options include -k [string]
Searches NAME field of man pages for specified string | | whatis | whatis KEYWORD | Displays the NAME field from the man page for the specified keyword. |
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