linux 终端backspace不能删除字符

在/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||ora||/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 = <undef>;

    eol2 = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W;

    lnext = ^V; flush = ^O; min = 1; time = 0;

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