Termux cheatsheet

2019-05-29 (updated 2020-12-04)

Termux & MariaDB

How to run MariaDB, a drop-in alternative to MySQL, on Termux

# Install MariaDB
pkg mariadb

# Run this multi-line command
cd '/data/data/com.termux/files/usr' ; \ 
/data/data/com.termux/files/usr/bin/mysqld_safe \ 
--datadir='/data/data/com.termux/files/usr/var/lib/mysql'

Open files from within Termux

Open a file reachable by Termux, and view it in any Android app. I.E. send a file by email or view/edit an image in an editor.

termux-open file.jpg

This will request the "open in" prompt. Handy for viewing images, PDF or any other file format not viewable in a terminal.

PostgreSQL

Troubleshooting

Problem

After installation, on database initialization PostgreSQL server is unable to start.

when running $ initdb the following exception is raised

CANNOT LINK EXECUTABLE "/data/data/com.termux/files/usr/bin/postgres": library "libicui18n.so.67" not found no data was returned by command ""/data/data/com.termux/files/usr/bin/postgres" -V" initdb: error: The program "postgres" is needed by initdb but was not found in the same directory as "/data/data/com.termux/files/usr/bin/initdb". Check your installation.

Solution

pkg upgrade

Python

Troubleshooting

If matplotlib fails to install: pip3 install wheel

Jupyter Notebook

pkg install libzmq

pip3 install jupyter