<Table> <Tr> <Th> Operating system </Th> <Th> Command </Th> <Th> Valid alternative </Th> <Th> Notes </Th> </Tr> <Tr> <Td> OpenVMS </Td> <Td> directory / owner </Td> <Td> Dir / Owner </Td> <Td> instruct the directory command to also display the ownership of the files . Note the Directory command name is not case sensitive , and can be abbreviated to as few letters as required to remain unique . </Td> </Tr> <Tr> <Td> DOS </Td> <Td> dir / Q / O :S d * </Td> <Td> diR / qd * / o :s </Td> <Td> display ownership of files whose names begin with `` D '' , sorted by size , smallest first . Note spaces around argument d * are required . </Td> </Tr> <Tr> <Td> Unix - like systems </Td> <Td> ls - lS D * </Td> <Td> ls - S - l D * </Td> <Td> display in long format files and directories beginning with `` D '' ( but not `` d '' ) , sorted by size ( largest first ) . Note spaces are required around all arguments and options , but some can be run together , e.g. - lS is the same as - l - S . </Td> </Tr> <Tr> <Td> Data General RDOS CLI </Td> <Td> list / e / s 04 - 26 - 80 / b </Td> <Td> List / S / E 4 - 26 - 80 / B </Td> <Td> list every attribute for files created before 26 April 1980 . Note the / B at the end of the date argument is a local switch , that modifies the meaning of that argument , while / S and / E are global switches , i.e. apply to the whole command . </Td> </Tr> </Table>
list three example of software that used command line interface in real life application
OpenVMS DOS Data General RDOS CLI