Linux agregar a la ruta
export PATH=$PATH:/place/with/the/file
Amused Albatross
export PATH=$PATH:/place/with/the/file#Ubuntu 20.04:
echo 'export PATH=$PATH:$HOME/Android/Sdk/emulator' >> ~/.bashrc
#update current shell
source ~/.bashrc
export PATH="/path/to/dir:$PATH"
export PATH="$HOME/bin:$PATH"
nano ~/.bashrc