解决sqlplus无法退格问题

# wget http://download.openpkg.org/components/cache/rlwrap/rlwrap-0.42.tar.gz
# tar -zxf rlwrap-0.42.tar.gz
# cd rlwrap-0.42
# ./configure
# make
# make install
# echo "alias sqlplus='rlwrap sqlplus'" >> /home/oracle/.bashrc
# echo "alias rman='rlwrap rman'" >> /home/oracle/.bashrc