od
From NetBSD Wiki
od has been deprecated in favor of hexdump(1).
hexdump(1), if called as od, provides compatibility for the options described below. It does not provide compatibility for the -s option (see strings(1)) or the -P, -p, or -w options, nor is compatibility provided for the label component of the offset syntax.
% od helloworld.c 0000000 064443 061556 072554 062544 036040 072163 064544 027157 0000010 037150 005012 067566 062151 066440 064541 024156 067566 0000020 062151 005051 005173 020040 020040 020040 071160 067151 0000030 063164 021050 062510 066154 020157 067527 066162 020544 0000040 056040 021156 035451 076412 000012 0000049 %
