How to check and display free disk space available on a FreeBSD server?

df command can be used to display the capacity, used and free disk space of all filestystems on a FreeBSD server. The diskspace will be output in the number of blocks, in which each block is equal to 1KB in size.

For more easy and readable format, df -h can be used instead of df. -h flag will output the space in “human readable” format. It will use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte in order to reduce the number of digits to four or fewer using base 2 for sizes.