BSD System Compatibility

basename - (BSD) return non-directory portion of a pathname

chown - (BSD) change file ownwer

deroff - (BSD) remove nroff, troff, tbl and eqn constructs

df - (BSD) disk free

du - (BSD) summarize disk usage

echo - (BSD) echo arguments

groups - (BSD) show group memberships

install - (BSD) install files

ln - (BSD) make links

ls - (BSD) list contents of directory

ps - (BSD) process status

readlink - (BSD) displays the target of a symbolic link

stty - (BSD) set the options for a terminal

sum - (BSD) sum and count blocks in a file

test - (BSD) condition command