^h solution appears when Linux uses backspace

Used to execute scripts under Linux do not pay attention to the wrong content to be deleted when the ^h always appear, I did not know the truth before I can only run the script again, and later found that there are solutions, so record.

^h is not the H key meaning, is backspace. The main thing is that when your terminal backspace has a problem, it needs to be set.

There are two ways to resolve this:
1. To use the back Delete key (BACKSPACE), hold down the CTRL key while
2. Setting Environment variables
At the beginning or end of the script Stty erase ^h stty erase ^?
Under bash: $ stty erase ^?
Or put Stty erase ^? Added to the. Bash_profile.
Under CSH: $ stty Erase ^h
Or add the Stty erase ^h to the. CSHRC

^h solution appears when Linux uses backspace