Skip to main content
Free resource library

IT Certification PDFs

Cheat sheets, study guides, and practice tests built by engineers with real certifications.

Filter resources

2 resources Linux Clear filters
LinuxFREE
intermediate

Free Linux File Permissions Cheat Sheet PDF: chmod, chown and umask Explained

Every Linux file permissions cheat sheet promises to make chmod click. Most just list commands. This one walks through the actual logic: how to read rwx in ls -l, how symbolic and octal notation map to each other, and the one mistake that wrecks a whole directory when you run chmod -R without thinking first.…

762026-09-16
LinuxFREE
beginner

Linux Commands Cheat Sheet PDF: 64 Commands, 7 Groups

64 Linux commands on one page, grouped by what you're actually trying to do instead of listed alphabetically. Files and text, users and permissions, packages, processes, networking, and file transfer, each with a one-line description you can read in passing.

1162026-09-08

No resources found

Try adjusting your filters or search term.

Clear filters