如何重置bash配置?

Question

以前，当我在终端中错误地输入了一个错误的命令时，我会得到这样的输出:

Command 'whoaim' not found, did you mean:
command 'whoami' from deb coreutils (8.30-3ubuntu2)

Try: sudo apt install <deb name>

但现在当我输入错误的命令，如whoaim而不是whoami，我得到这样的输出:

bash: whoaim: command not found

我应该如何重置bash配置?

Answer 1

可以使用以下命令重置用户的bash配置文件:-

覆盖用户主目录下已有的.bashrc

cp /etc/skel/.bashrc ~/
source ~/.bashrc

备份已有的.bashrc从用户的主目录

但是，在这里查看如何在ubuntu

中使用command-not-found实用程序

Answer 2

您需要调用一个为bash提供此功能的函数。通常称为command_not_found_handle。首先，将其附加到.bashrc文件中。下面是代码:

command_not_found_handle () 
{ 
if [ -x /usr/lib/command-not-found ]; then
/usr/lib/command-not-found -- "$1";
return $?;
else
if [ -x /usr/share/command-not-found/command-not-found ]; then
/usr/share/command-not-found/command-not-found -- "$1";
return $?;
else
printf "%s: command not foundn" "$1" 1>&2;
return 127;
fi;
fi
}

然后运行以下命令重新加载配置文件:

. ~/.bashrc