Termux

If you donā€™t have a computer (which will severely limit your ability to code), your best bet is to use Termux on an Android device, as well as some web-based tools. Termux is unfortunately not available for iOS because Apple wants to protect consumers by disallowing code, compilers, OS system calls (also called syscalls), and other tools which could potentially be used maliciously (even if there are plenty of legitimate uses for them).

Be sure to run the following commands in Termux:

pkg install coreutils

pkg install busybox

pkg install python

pkg install vim-python

pkg install htop

Other useful hints:

help

pkg help

pkg search something_to_search_for

pkg install something_to_install

pkg update

pkg upgrade

Running a Python script:

touch test.py

vim test.py

python test.py

Hit i to enter insert mode in vim so you can type in code for your test.py program. Remember that you can exit vim by typing :q and then hitting enter. Or to save, hit :w and then enter. To save and then quit, use :wq and then hit enter. To discard changes and exit without saving, hit :q! and then enter.

If you want to do C/C++ programming, do this:

pkg install clang

pkg is the Termux package manager.

If you use echo $SHELL in Termux, you will see that the default shell is bash, so the previous section about shell scripting still applies here.

To quit the Termux app on an Android phone or tablet, use the exit command.

Congratulations on completing section 7!

Your proficiency with using the command line will help you immensely when you’re coding.

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