Problem: When using xshell connected CentOS7, enter a command SQLPLUS operation, if wrong information can not be Backspace (display "^ H"), the same press the delete key, display the "^ [[3 ~."
Solution: Internet to find relevant information, can be modified by the following method.
1. Select the session connection, right into the Properties tab. The key sequence can be modified to ASCII 127.
Note: For each session have to be modified. I tested this possible by this method. Here we have not tested other methods for reference purposes only!
2, resolved by way of command
[oracle@jklocal ~]$ stty erase ^H
3, you can use ctrl + backspace
Reference: https://blog.csdn.net/silenceray/article/details/53301591