How To Install chemeq on Ubuntu 18.04
Introduction
In this tutorial we learn how to install chemeq on Ubuntu 18.04.
What is chemeq
chemeq is:
chemeq is a basic standalone filter written in C language, flex and bison. It inputs strings like: 2H2 + O2 —> 2 H2O then it outputs LaTeX code and messages about the equilibrium of a chemical reaction.
example:~/src$ echo “2H2 + O2 —> 2 H2O” | chemeq -lc 2,H_{2},+,O_{2},\rightarrow,2,H_{2}O OK
There are three methods to install chemeq on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install chemeq Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install chemeq using apt-get by running the following command:
sudo apt-get -y install chemeq
Install chemeq Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install chemeq using apt by running the following command:
sudo apt -y install chemeq
Install chemeq Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install chemeq using aptitude by running the following command:
sudo aptitude -y install chemeq
How To Uninstall chemeq on Ubuntu 18.04
To uninstall only the chemeq package we can use the following command:
sudo apt-get remove chemeq
Uninstall chemeq And Its Dependencies
To uninstall chemeq and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove chemeq
Remove chemeq Configurations and Data
To remove chemeq configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge chemeq
Remove chemeq configuration, data, and all of its dependencies
We can use the following command to remove chemeq configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge chemeq
References
Summary
In this tutorial we learn how to install chemeq package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.