REVPATH(1)REVPATH(1)NAMErevpath - generate a relative path that can be used to
undo a change-directory
SYNOPSISrevpath path
DESCRIPTION
The revpath program prints out a relative path that is the
``reverse'' or ``inverse'' of path. Start with two direc-
tories top and bottom, with the latter below the former,
and path is the location of bottom relative to top. The
output of revpath is the location of top relative to bot-
tom. The resulting path contains a trailing `/' character
when the result is non-trivial. If path is equivalent to
`.', the resulting output is empty. If path is invalid in
some way (e.g., doesn't represent the path to a subdirec-
tory) the output is also empty and no error messages are
ever generated.
DIAGNOSTICS
There are no diagnostics. Error conditions are silently
ignored, and the exit status is always 0.
BUGS
It isn't possible to reverse arbitrary relative paths. If
any path element between the two end points of path is a
symbolic link, the results will probably be incorrect.
XFree86 4.0 1