NAME df - report free disk space on volumes SYNOPSIS df [volume_name...] DESCRIPTION This command displays the size of currently mounted volumes, the amount of used and available space, and how much of the volume's total capacity have been used. When no arguments are given, df reports on all mounted volumes, producing something like this: filesystem kbytes used avail capacity new boy 157940 91298 66642 57% dog boy 156917 105357 51560 67% RETURN CODES <0 Error 0 Success