Executing a command after the first command executed

Question

I just recently installed beep on Ubuntu and finally managed to get it to work. So I was able to hear the beeping sound after executing:

beep

Everything worked well, however, I was just wondering if it's possible to execute "beep" everytime I execute a command. Say for example:

cat /etc/passwd && beep

After reading /etc/passwd, it will be executing a beeping sound. I'd like to know if there's a way to execute beep after every command without having me to use "&& beep" always.

A clearer example:

ls && beep
ls -la && beep
cat /etc/passwd && beep

Notice the constant command "beep" followed by "&&" after every initial command.

Answer 1

You can set PROMPT_COMMAND=beep (try it first, then add to your ~/.bashrc if it doesn't drive you crazy). This will execute beep just before it displays the command prompt.

Answer 2

您可以尝试更改提示：

PS1="$PS1"'\007'