DUMPFS(8) BSD System Manager's Manual DUMPFS(8) NNAAMMEE dduummppffss - dump file system information SSYYNNOOPPSSIISS dduummppffss [_f_i_l_e_s_y_s | _d_e_v_i_c_e] DDEESSCCRRIIPPTTIIOONN DDuummppffss prints out the super block and cylinder group information for the file system or special device specified. The listing is very long and detailed. This command is useful mostly for finding out certain file system information such as the file system block size and minimum free space percentage. SSEEEE AALLSSOO fs(5), disktab(5), disklabel(8), tunefs(8), newfs(8), fsck(8) HHIISSTTOORRYY The dduummppffss command appeared in 4.2BSD. 4.2 Berkeley Distribution June 5, 1993 1