The best way I've learned C is to write tiny command-line programs for every possible task. Need to get the current path? Forget `pwd` or `cwd`, I'll write my

The best way I've learned C is to write tiny command-line programs for every possible task. Need to get the current path? Forget `pwd` or `cwd`, I'll write my own. Need to know the number of files in a directory? I'll write my own.