Glossary

Key Points

Advanced Shell Scripting	Shell scripts can be used to more complicated programming tasks
Working Remotely	SSH is a secure alternative to username/password authorization SSH keys are generated in public/private pairs. Your public key can be shared with others. The private keys stays on your machine only. The ‘ssh’ and ‘scp’ utilities are secure alternatives to logging into, and copying files to/from remote machine
Running Bash Scripts on an HPC Cluster	Clusters work like your computer, but with a scheduler
Permissions	Correct permissions are critical for the security of a system. File permissions describe who and what can read, write, modify, and access a file. Use `ls -l` to view the permissions for a specific file. Use `chmod` to change permissions on a file or directory.
Directory structure	FIXME
Job control	When we talk of ‘job control’, we really mean ‘process control’ A running process can be stopped, paused, and/or made to run in the background A process can be started so as to immediately run in the background Paused or backgrounded processes can be brought back into the foreground Process information can be inspected with `ps`
Aliases and bash customization	Aliases are used to create shortcuts or abbreviations The `.bashrc` and `.bash_profile` files allow us to customize our bash environment. The `PS1` system variable can be changed to customize your bash prompt.
Shell Variables	FIXME
The Unix Shell
Transferring Files	FIXME