For an example of DutchDaemon's point:
Code:
[~]% du -h /rescue/
3.6M /rescue/
[~]% ls -s /rescue/
total 445292
3680 [* 3680 date* 3680 fsck* 3680 ipf* 3680 mount_msdosfs* 3680 rdump* 3680 spppcontrol*
3680 atacontrol* 3680 dd* 3680 fsck_4.2bsd* 3680 kenv* 3680 mount_nfs* 3680 realpath* 3680 startslip*
3680 atmconfig* 3680 devfs* 3680 fsck_ffs* 3680 kill* 3680 mount_ntfs* 3680 reboot* 3680 stty*
3680 badsect* 3680 df* 3680 fsck_msdosfs* 3680 kldconfig* 3680 mount_nullfs* 3680 red* 3680 swapon*
3680 bsdlabel* 3680 dhclient* 3680 fsck_ufs* 3680 kldload* 3680 mount_udf* 3680 rescue* 3680 sync*
3680 bunzip2* 10 dhclient-script* 3680 fsdb* 3680 kldstat* 3680 mount_unionfs* 3680 restore* 3680 sysctl*
3680 bzcat* 3680 disklabel* 3680 fsirand* 3680 kldunload* 3680 mv* 3680 rm* 3680 tar*
3680 bzip2* 3680 dmesg* 3680 gbde* 3680 ldconfig* 3680 newfs* 3680 rmdir* 3680 tcsh*
3680 camcontrol* 3680 dump* 3680 getfacl* 3680 link* 3680 newfs_msdos* 3680 route* 3680 test*
3680 cat* 3680 dumpfs* 3680 groups* 3680 ln* 2 nextboot* 3680 routed* 3680 tunefs*
3680 ccdconfig* 3680 dumpon* 3680 gunzip* 3680 ls* 3680 nos-tun* 3680 rrestore* 3680 umount*
3680 chflags* 3680 echo* 3680 gzcat* 3680 md5* 3680 pax* 3680 rtquery* 3680 unlink*
3680 chio* 3680 ed* 3680 gzip* 3680 mdconfig* 3680 ping* 3680 rtsol* 3680 vi*
3680 chmod* 3680 ex* 3680 halt* 3680 mdmfs* 3680 ping6* 3680 savecore* 3680 whoami*
3680 chroot* 3680 expr* 3680 hostname* 3680 mkdir* 3680 ps* 3680 sconfig* 3680 zcat*
3680 clri* 3680 fastboot* 3680 id* 3680 mknod* 3680 pwd* 3680 setfacl*
3680 cp* 3680 fasthalt* 3680 ifconfig* 3680 mount* 3680 rcorder* 3680 sh*
3680 csh* 3680 fdisk* 3680 init* 3680 mount_cd9660* 3680 rcp* 3680 slattach*
Most files (except nextboot and dhclient-script) in
/rescue/ are a hard link to
/rescue/rescue.