How to change the terminal prompt to just current

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I am using a Macbook Pro, and I wanted to change it to the current directory and a dollar sign prompt in Terminal. I've already looked at these resources to try and solve this issue.

I tried modifying the ~/.bashrc file and saving it but it did not seem to work.

PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting

### Added by the Heroku Toolbelt
export PATH="/usr/local/heroku/bin:$PATH"
export PS1="\W$ ”

The last line is what I added to change the prompt.

回答1:

This should be done in .bash_profile, not .bashrc.

nano ~/.bash_profile

Add a line containing this:

export PS1="\W\$ "

.bashrc is ONLY excuted when starting a sub-shell. bash login shell uses the following initialization scripts:

.bash_profile
.bash_login
.profile

回答2:

You need to escape the dollar sign. Like this:

$ PS1="\W\$ "
~$ cd tmp
/Users/philip/tmp
tmp$

And once you change your .bashrc you either need to logout/back-in or . ~/.bashrc to re source it.

I would humbly recommend not doing this. Having a full path is very useful as 'tmp' directories could be anywhere. Consider using "\w" which does relative path (ie. uses ~ to represent HOME)