These web pages concern various kinds of operations on computer files.

• Get the full file name of the current executable on Unix
• Detecting FILE * buffering
• Detecting whether a file is seekable
• Get the size of a file in C
• List the files in a Unix directory with C
• Open a file in C
• Read a whole file into memory in C
• Recursively list directories in C
• Write a PNG file using C and libpng