differ(1) - Linux man page
Name
differ - a tool for generating patches
Synopsis
differ TARBALL
Description
When called in the root directory of a source tree that packer has been run in, differ will create a patch
between the contents of the tarball specified on the command line and the contents of the current directory. Packer-generated directories will be ignored when
making this patch. The tarball specified must be a .tar.gz file.
Author
Written by Daniel Milstein, who may be contacted at dmilstein at the domain users.sourceforge.net.
See Also
packer (1)