To provide a more interactive experience for developers, PyQASM offers a command-line interface (CLI) tool. The CLI tool can be installed as an extra dependency by running the following command: 
pip install 'pyqasm[cli]'
This feature is still in active development and may not be stable for production use
Users can then verify their installation by running the following command: 
pyqasm --help
The validate functionality can be used to check QASM files. You can provide the path to the QASM file or a directory as an argument to the validate command. The tool will then check the semantic validity of the file(s) and return the results. 
$ pyqasm validate tests/cli/resources/valid1.qasm

Success: no issues found in 1 source file