Can anyone explain the Ubuntu's bash prompt?
It's basically username@box:~$ but the part that confuses me is $.
Is it just a letter that can be of preference, or it has some actual meaning?
"$" was the default prompt string in sh, the Bourne shell. It doesn't have any special meaning besides showing that you are a normal user (the default prompt for root is "#").
Since bash ("Bourne Again" shell) is a derivative of sh, it continues to use $/# as part of its default prompt. Take a look at http://www.gilesorr.com/bashprompt/howto/x170.html and bash's manual page for information on how to customize it.
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4 years ago