Command line Command line feed

Learn how to make better use of the command line, the interface preferred by many open source developers and users.

Free disk space

Find out how much Linux disk space you have left with the df command.
Puzzle pieces coming together to form a computer screen

trace-cmd is an easy-to-use, feature-rich utility for tracing Linux kernel functions.
Check disk usage

Find out how much disk space you're using with the Linux du command.
Cron expression

The cron system is a method to automatically run commands on a schedule.
Password lock

Create passwords that meet specific criteria on the command line.
Text editor on a browser, in blue

Use qpdf and poppler-utils to split, modify, and combine PDF files.
Magnifying glass on code

The fd command is a popular, user-friendly alternative to the find command.