H3C S3100 Series Operation Manual page 28

Press...
Left arrow key or <Ctrl+B>
Right arrow key or <Ctrl+F>
Up arrow key or <Ctrl+P>
Down arrow key or <Ctrl+N>
<Tab>
Move the cursor one character to the left.
Move the cursor one character to the right.
Display history commands.
Use the partial online help. That is, when you input an
incomplete keyword and press <Tab>, if the input
parameter uniquely identifies a complete keyword, the
system substitutes the complete keyword for the input
parameter; if more than one keywords match the input
parameter, you can display them one by one (in complete
form) by pressing <Tab> repeatedly; if no keyword
matches the input parameter, the system displays your
original input on a new line without any change.
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