What are some common file system commands in C?

What are some common file system commands in C?

In C, common file system commands include fopen, fclose, fread, fwrite, and remove. Would you like details on any specific command?

Can you explain how to use fopen?

Sure! The fopen function is used to open a file. It takes two parameters: the filename and the mode (like "r" for read, "w" for write). For example: FILE *file = fopen("example.txt", "r");

What does the mode 'w' do?

The 'w' mode opens a file for writing. If the file already exists, it truncates the file to zero length. If it doesn't exist, it creates a new file.

How do I read from a file once it's opened?

You can use fread or fscanf to read from a file. For example, fscanf(file, "%d", &number); reads an integer from the file.