bash profile 적용 순서
profile → bashrc → alias 순이라고 생각하면 쉽다.
login shell 의 경우
/etc/profile/etc/profile.d/*.sh/etc/profile.local~/.profile/etc/bash.bashrc/etc/bash_completion.d/*.sh/etc/bash.bashrc.local/etc/inputrc~/.bashrc~/.alias
non-login shell의 경우
/etc/bash.bashrc/etc/bash_completion.d/*.sh/etc/bash.bashrc.local/etc/iputrc~/.bashrc~/.alias