"In almost every column in this series, I've suggested that you use the man command to learn more about the commands being discussed. This week I'll show you why that's a good idea. Remember, there's a lot more to even the smallest commands, like ls, which lists the contents of a directory, than meets the eye. Let's drill down a bit and find out what else "ls" can do for us other than simply telling us the file names in a directory.
"The man page on "ls" tells us that the basic format of the command is:
ls [OPTION]... [FILE]...
"By default, without any options, the command produces a list of file names in alphabetical order for either the current directory or the directories (the [FILE]s in the basic format shown above) specified..."
