Partial Help

You can enter "?" or the first several letters of a key word in the command, and then press Tab to obtain partial help.

You can obtain the partial help of the command line in the following ways:

Enter a character string with a "?" closely following it to display all commands that begin with this character string.
```
<sysname> d?
debugging   delete   dir   display
```
Enter a command and a character string with "?" closely following it to display all the key words that begin with this character string.
```
<sysname> display f?
fastfeeling   fib   firewall   ftp-server
ftp-users   
```
Enter the first several letters of a key word in the command and then press Tab to display the complete key word on the condition that the letters uniquely identify the key word. Otherwise, if you continue to press Tab, different key words are displayed. You can select the needed key word.