How can I reload file .bash_profile from the command line? I can get the shell to recognize changes to .bash_profile by exiting and logging back in, but I would like to be able to do it on demand.

 

To apply changes made to the .bash_profile file in the current terminal session without logging out and back in, you can use the source command or its shorthand, which is the dot .. These commands will read and execute the contents of the file, making the changes take effect immediately.

Here's how you can do it:

1. Using source:

   sh

source ~/.bash_profile

Using the dot .:

sh

2. . ~/.bash_profile
   

In both cases, replace ~/.bash_profile with the actual path to your .bash_profile file.

Here's an example scenario:

Assuming you've made changes to your .bash_profile file, like adding an environment variable or an alias, and you want to apply those changes without logging out:

1. Edit your .bash_profile using a text editor.

2. Save the changes.

3. To apply the changes immediately in the current terminal session, use either of the following commands:

   sh

source ~/.bash_profile

or

sh

3. . ~/.bash_profile
   

The changes you made to the .bash_profile file will now be active in your current terminal session.

Remember that the changes will only apply to the terminal session in which you run the source or . command. If you open a new terminal window or session, you'll need to run the command again to apply the changes.