Web site counters - CommandPurposehistoryLists off the last 1,000 commands you ve typed.
CommandPurposehistoryLists off the last 1,000 commands you ve typed. unaliasRemoves command shortcuts. If you try to view the manpage entry for some of these commands, you findinstead the help information for BASH BUILTINSloads. To search throughthis massive manual, press the forward slash (/) key to open the mansearchinterface and then type the name of the command you want to search for. Press Enter to start the search. The interface stops in the first spot where theterm is found. If you want to try again, press the N key to proceed to the nextoccurrence of the word. For example, you might be reading the massive bash man page (type manbashto access this page), but perhaps you re only interested in items relatedtoprompts,which are the bits of text that appear to the left of your cursor ina text window. An example prompt is[dee@catherine dee]$ So, you might type /promptand press Enter to jump down to the firstinstance of this word. If the text around the word doesn t reflect what you relooking for, you d press the N key to jump to the next one, and so on. Getting HelpWhen you re digging around for help on a command, you can call on an inter- esting range of shell commands for assistance, as shown in Table A-3. Table A-3Shell Help CommandsCommandPurposeaproposLooks for commands that contain a keyword in their man page descriptions. infoOne way of finding help information. You can find instructions for thistool at www.gnu.org/software/texinfo/manual/info/ manThe primary way of getting help in Linux and Unix. whatisGets a one-line description of a command. Locating details about the command-prompt options of a command is anever-ending pursuit. The manpage system provides some helpful guides atyour fingertips for rapidly finding this detailed information. 397Appendix A: Common Linux Commands31_