Twin directories of diff:

[DIR]  ftp://128.31.0.36/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.cesca.es/mirror2/softcatala/softcatala/abiword/2.2.4/win32/diff/
[DIR]  ftp://ftp.cesca.es/mirror/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors3/debian.org/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/CursoXML/programas/swoop-2.3beta4/src/org/mindswap/swoop/utils/owlapi/diff/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/CursoXML/programas/swoop-2.3beta4/test/org/mindswap/swoop/utils/owlapi/diff/
[DIR]  ftp://ftp.uni-magdeburg.de/pub/mirror/linux/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://debian.lcs.mit.edu/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.farlep.net/pub/Windows/CYGWIN/diff/
[DIR]  ftp://ftp.skynet.be/mirror1/security.debian.org/pool/updates/main/d/diff/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/gentoo/portage/rox-extra/diff/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/gentoo/portage/dev-ruby/diff/
[DIR]  ftp://ftp.3logic.net/.1/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.3logic.net/.1/debian-archive/pool/main/d/diff/
[DIR]  ftp://ftp.nz.debian.org/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.nz.debian.org/gentoo-x86-portage/rox-extra/diff/
[DIR]  ftp://ftp.nz.debian.org/gentoo-x86-portage/dev-ruby/diff/
[DIR]  ftp://ftp.nz.debian.org/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/debian-mirror/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/usr.bin/diff/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/usr.bin/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/contrib/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/gnu/usr.bin/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/contrib/cvs/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/fvdl/acpi/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/gnu/dist/xcvs/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/gnu/usr.bin/diffutils/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/gnu/dist/xcvs/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/gnu/usr.bin/diffutils/diff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/external/gpl2/xcvs/dist/diff/
[DIR]  ftp://ftp.mcs.vuw.ac.nz/_mnt/pub/shells/Cygwin/diff/
[DIR]  ftp://ftp.port80.se/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.cs.iastate.edu/pub/linux/debian/pool/main/d/diff/
[DIR]  ftp://130.251.19.2/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.ednet.ns.ca/pub/its/CYGNUS/latest/diff/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/ubuntu/ubuntu/pool/main/d/diff/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo-portage/rox-extra/diff/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo-portage/dev-ruby/diff/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/eclipse/tools/ajdt/34/dev/update/plugins/icons/diff/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/debian-security/pool/updates/main/d/diff/
[DIR]  ftp://ftp.swin.edu.au/slackware/slackware-3.3/source/ap/diff/
[DIR]  ftp://ftp.swin.edu.au/gentoo-portage/rox-extra/diff/
[DIR]  ftp://ftp.swin.edu.au/gentoo-portage/dev-ruby/diff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/usr.bin/diff/diff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/usr.bin/diff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/gnu/usr.bin/diff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/contrib/diff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/contrib/cvs/diff/