command for relative path

[Peng Yu]

Hi,

coreutils can give abspaths ('readlink -f -e'). But I'm not able to
find a command for relative paths. I use the following python script
to do so. The drawback is that it is dependent on python (meaning it
is less portable). But I'm wondering if it is possible to add such a
command (or an option of a command) in coreutils.

~$ cat `which relpath.py `
#!/usr/bin/env python

import sys
import os

args = sys.argv

if len(args)-1 != 1 and len(args)-1 != 2:
  print >> sys.stderr, "Usage: %s <path> " %(os.path.basename(args[0]))
  print >> sys.stderr, "Usage: %s <path> <start>" %(os.path.basename(args[0]))
  sys.exit()

if len(args)-1 == 1:
  start='.'
else:
  start=args[2]

path=args[1]

print os.path.relpath(path, start)

-- 
Regards,
Peng