HPC systems are usually accessed via a Linux-based Command Line Interface (CLI). Via the CLI, users can run programs to manipulate files, load additional software, or execute programs.

While there are many similarities to single-user Linux systems, HPC systems differ widely in the management of provided Software packages, and users must pay attention to the locality of data.

• Describe the command line interface and the bash shell.
• Sketch the organization of the typical file system tree.
• Utilize essential tools to navigate and manage files.
• Utilize package management tools that provide access to a wide variety of software.
• Use and write basic shell scripts, e.g., to automate the execution of several commands.
• Utilize tools to transfer data between a desktop/laptop system and a remote HPC system.

• USE1.1 Command Line Interface
• USE1.2 Shell Scripts
• USE1.3 UNIX File System Tree
• USE1.4 Remote Access
• USE1.5 Overview: Software Environment