import re
pattern = r"^/home/user(?:/[^/\n]+)+"
s = ("/home/user\n"
"/home/user/\n"
"/home/user/foo\n"
"/home/user/bar/foo")
print(re.findall(pattern, s, re.M))
aW1wb3J0IHJlCgpwYXR0ZXJuID0gciJeL2hvbWUvdXNlcig/Oi9bXi9cbl0rKSsiCgpzID0gKCIvaG9tZS91c2VyXG4iCgkiL2hvbWUvdXNlci9cbiIKCSIvaG9tZS91c2VyL2Zvb1xuIgoJIi9ob21lL3VzZXIvYmFyL2ZvbyIpCgkKcHJpbnQocmUuZmluZGFsbChwYXR0ZXJuLCBzLCByZS5NKSk=