Solve the problem of question mark by backspace key under Linux

Environment: VirtualBox4.1 + RedHat Linux 6

Question: Press the BACKSPACE key to appear the question mark

As shown in the figure:

Problem Analysis: Misuse of Reset command.

Solve:

Setting the environment variable (set in the text interface, which is similar to the Windows DOS interface):

Under Bash, execute the following statement: $ stty Erase ^?

or add Stty erase ^? to the. Bash_profile.

Under CSH, execute the following statement: $ stty Erase ^h

Or add the Stty erase ^h to the. CSHRC.