Mac OS X in a Nutshell

Name

diff

Synopsis

diff

  [ -k kflag ]
  [ -l | -R ]
  [ format ]
  [ [ -r rev1 | -D date1 ] [ -r rev2 | -D date2 ] ]
  [ file  ]

The diff command compares two versions of a file and displays the differences in a format determined by the options. By default, the sandbox version of the file will be compared to the repository version it was originally copied from.

The standard meanings of the common client options -D, -k, -l, -r, and -R apply. All options for the diff command in Chapter 25 can also be used.