在linux/unix平台的经常使用scanf从键盘获取字符，输出字符后按Backspace键删除时，会出现^H，这对习惯了按Backspace键删除的用户来说，感觉非常别扭，虽然可以通过Ctrl+Backspace组合键实现删除功能

可通过stty命令修改终端配置来实现Backspace删除功能。如下：

QUOTE:   

[oracle@RHEL5 ~]$ id

uid=501(oracle) gid=501(oinstall) groups=501(oinstall),502(dba),503(asadmin)

[oracle@RHEL5 ~]$ stty erase ^h

若要恢复Ctrl+Backspace组合键删除功能，可执行以下命令：

QUOTE:

[oracle@RHEL5 ~]$ id

uid=501(oracle) gid=501(oinstall) groups=501(oinstall),502(dba),503(asadmin)

[oracle@RHEL5 ~]$ stty erase ^?

同时可通过stty -a查看所有的终端设置：

QUOTE:

oracle||oralinux||/home/oracle||-->>id uid=500(oracle) gid=501(oinstall) groups=500(dba),501(oinstall) oracle||oralinux||/home/oracle||-->>stty -a speed 38400 baud; rows 24; columns 80; line = 0; intr = ^C; quit = ^\; erase = ^H; kill = ^U; eof = ^D; eol = ; eol2 = ; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd cs8 -hupcl -cstopb cread -clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke