Why do I need to source bash_profile every time

Question

I have installed Hadoop and every time I want to run it, first I have to do this:

source ~/.bash_profile

or it won\'t recognize the command

Answer 1

Now that we've narrowed down the problem:

1. Run ps -p $$ at the command line to determine that you are, in fact, using a bash shell.
2. Realize that you are in zsh, which means you should be editing your profile in .zshrc.
3. Copy the offending lines from .bash_profile to .zsh, OR
4. Modify your .zshrc to directly source your .bash_profile.

UPDATE: Do what @TC1 mentions in the comments and keep the shell-specific code in each shell's own profile, and from those profiles, only source shell-agnostic code.