* Installation [#v7a7b5f0] Let us suppose we are going to use Quantum-ESPRESSO 6.2.1 (if you would like to use the [[WEST>http://www.west-code.org/]] code, use Quantum-ESPRESSO 6.1). Let us first make directories for source codes, pseudopotentials, and calculations for Quantum-ESPRESSO in the home directory, for e.g. $ mkdir -p QE/src $ mkdir -p QE/pseudo $ mkdir -p QE/out ** Downloading [#q4b59cc9] Download qe-6.2.1 from [[gitlab>https://gitlab.com/QEF/q-e/tags]] and move it to the source directory (in the current example, $(HOME)/QE/src). ** Configure [#k95e7c0e] Expand the source code, e.g., $ gzip -c q-e-qe-6.2.1.tar.gz | tar xvf - and get q-e-qe-6.2.1. In the following this is renamed as $mv q-e-qe-6.2.1 qe-6.2.1 ** build [#t45856ab]