.TH DF 1M .SH NAME df \- disk free .SH SYNOPSIS .B df [ filesystem ] ... .SH DESCRIPTION .I Df prints out the number of free blocks available on the .I filesystems. If no file system is specified, the free space on all of the normally mounted file systems is printed. .SH FILES Default file systems vary with installation. .SH "SEE ALSO" icheck(1)