How do I determine how much disk space I have in Linux / Unix?

Question

How do I determine how much disk space I have in Linux / Unix?

Answer

Linux / Unix and their variants have several different ways of determining the available free space and the capacity of a file, drive, a mount, or other share. Below is a listing of commands that can be used to determine this information. 

• df
• du
• ls
• vmstat

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