CCENT/CCNA ICND1 100-101 Official Cert Guide

CLI Help Features

If you printed the Cisco IOS Command Reference documents, you would end up with a stack of paper several feet tall. No one should expect to memorize all the commands—and no one does. You can use several very easy, convenient tools to help remember commands and save time typing. As you progress through your Cisco certifications, the exams will cover progressively more commands. However, you should know the methods of getting command help.

Table 7-4 summarizes command-recall help options available at the CLI. Note that, in the first column, command represents any command. Likewise, parm represents a command’s parameter. For example, the third row lists command ?, which means that commands such as show ? and copy ? would list help ...