Calculate letter frequency in gawk
Write a gawk script to determine the most (and least) common letters in a set of words.
Programming across platforms
Using these C compiler preprocessor directives to detect the operating system can make it easier to support multiple platforms at once.
Write a guessing game in ncurses
Use the flexibility of ncurses to create a guess-the-number game on Linux.
Terminal size and ncurses
When programs like vi first came along, terminals had a predefined size: usually 80 columns and 24 lines (actually 25 lines, but the last line...
Searching text files from the command line
The find command is a powerful and flexible tool to locate files under a path.
Random numbers from the Linux kernel
Let the kernel generate random numbers for you using ‘getrandom.’
A gentle introduction to ncurses
You can create your own programs that use a text user interface to control the screen.
Learn C by writing a number guessing game
The “Guess the number” game is a fun way to learn a new programming language.
Editing files with FreeDOS Edlin
Edlin is a classic editor from the early DOS days, but it’s still a fun and useful editor.
Join the community and share an article
Our community wants to read about your experience and how you use your favorite open source application.
Check spelling at the command line
Check spelling at the command line like old-school Unix with this cool script.
Guess the number in FORTRAN 77
Explore classic programming in FORTRAN 77 with this sample program.
Count magic bunnies in LibreOffice Calc
Use this tutorial to learn about AutoFill in LibreOffice Calc.
LibreOffice Calc functions to make your work easier
Here are the LibreOffice Calc functions that I use all the time to get my work done.
A look back: FORTRAN 77
Take a step back in time to a time when programs were punched on cards.