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Old 09-29-2004, 11:53 PM   #1
stardotstar
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Registered: Nov 2002
Location: /au/qld/bne/4157
Distribution: Gentoo mactel-linux
Posts: 238

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What is the diff between / and //


I am wondering what the difference between cd / and cd // is.

I am prompted to ask the question after encountering the following shell session:

Code:
[root@stardot forum]# cd //
[root@stardot //]# pwd
//
[root@stardot //]# ls
bin  boot  dev  etc  home  initrd  lib  lost+found  misc  mnt  opt  proc  root  sbin  selinux  sys  tmp  usr  var
[root@stardot //]# cd ////
[root@stardot /]# cd /
[root@stardot /]# ls
bin  boot  dev  etc  home  initrd  lib  lost+found  misc  mnt  opt  proc  root  sbin  selinux  sys  tmp  usr  var
[root@stardot /]# cd //
[root@stardot //]# ls
bin  boot  dev  etc  home  initrd  lib  lost+found  misc  mnt  opt  proc  root  sbin  selinux  sys  tmp  usr  var
[root@stardot //]# pwd
//
[root@stardot //]# cd ..
[root@stardot //]# pwd
//
[root@stardot //]# cd /./
[root@stardot /]# ls -lasd //
4 drwxr-xr-x  21 root root 4096 Sep 30 12:02 //
[root@stardot /]#
I think you will quickly see what I am getting at...

TIA

Will*
 
Old 09-30-2004, 02:02 AM   #2
CroMagnon
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Registered: Sep 2004
Location: New Zealand
Distribution: Debian
Posts: 900

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There is no difference in those two cd commands, except that due to a small quirk in the shell, it prints the current path as // instead of /
Sometimes a script will end up with two /'s together in the middle of a path due to a / not being stripped off the end of a paramter - it makes no difference.
(example: ./configure --prefix=/usr/ might result in a path /usr//bin being used - this will just be /usr/bin)
 
  


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