Linux under the Sqlplus of Oracle in the upper and lower left and right backspace key cannot be used

I. Configure the Yum source and install the readline*     configuration local yum     1, Mount disc          Mount/dev/cdrom/mnt/media     2, create a new local Yun source configuration file          vi/etc/ Yum.repos.d/local.repo          Add the following information: [local]name=localbaseurl=file:///mnt/mediaenable=1gpgcheck=0 then  yum-y Install readline* two. Download and install Rlwrap          tar     ./configure make make     install three. Modify the Oracle user. Bash_profile     vi. bash_profile Add:     alias sqlplus= ' Rlwrap sqlplus '     alias rman= ' Rlwrap Rman '

Linux under the Sqlplus of Oracle in the upper and lower left and right backspace key cannot be used