Learn linux common commands
There is a very practical:
tab command completion / completion path / filename completion:
It is a tab completion
Two tab, lists information
Extracting sudo tar zxvf arm-linux-gcc-4.4.3.tar.gz -C /
Run the command: sudo gedit /root/.bashrc
Add the environment variable: export PATH = $ PATH: /opt/FriendlyARM/toolschain/4.4.3/bin
Or failure will find that after you add the environment variable, after Baidu know, do not panic, this is because we ubuntu16.04 is a 64-bit system, you need to install 32-bit library support arm-linux-gcc.
Enter sudo apt-get install lsb-core
Finally input arm-linux-gcc -v, displays the test completion
Write a program
Ha ha ha but he added a line break.
over！
