问题
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)
来源：https://stackoverflow.com/questions/20913134/how-to-change-the-terminal-prompt-to-just-current-directory