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Debian Jessie 中 bash 提示符开头出现虚假 @ 符号

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Debian Jessie 中 bash 提示符开头出现虚假 @ 符号

最近，在我没有刻意做任何事情来实现这一点的情况下，我的 Bash 提示符出现了一个在标志处（即@）放在它前面。这以前没有发生过。我也看不到我身上有任何东西~/.bashrc似乎应该让这一切发生。

这是在 Debian Jessie GNU/Linux 上，使用 GNU Bash。

例如，我当前的 Bash 会话如下所示：

@sampablokuper@debianbox:~$ python3
Python 3.4.2 (default, Oct  8 2014, 13:14:40) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
@>>> 1+2
3
@>>> exit()
@sampablokuper@debianbox:~$

而最初，它们看起来像这样：

sampablokuper@debianbox:~$ python3
Python 3.4.2 (default, Oct  8 2014, 13:14:40) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 1+2
3
>>> exit()
sampablokuper@debianbox:~$

~/.bashrc以下是我的所有与 Bash 提示符相关的行：

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
        # We have color support; assume it's compliant with Ecma-48
        # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
        # a case would tend to support setf rather than setaf.)
        color_prompt=yes
    else
        color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

如何让 Bash 提示符像原来那样显示？

答案1

基于一个元讨论，我复制@steeldriver 非常好所有答案这里：

您似乎已配置readline为启用编辑模式指示。从8.3.1 Readline 初始化文件语法Bash 参考手册的内容：

show-mode-in-prompt (Off)
       If set to On, add a character to the  beginning  of  the  prompt
       indicating  the  editing  mode:  emacs (@), vi command (:) or vi
       insertion (+).

您应该能够在当前 shell 中使用禁用它

bind 'set show-mode-in-prompt off'

要永久禁用它，您需要找到它的设置位置，可能是您的~/.inputrc或/etc/inputrc文件。

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