Here you go:

Code:
Arties-MacBook:~ artie$ type -a du od
du is /usr/bin/du
od is /usr/bin/od
Arties-MacBook:~ artie$ echo "$PATH"
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
Arties-MacBook:~ artie$ echo "$SHELL"
/bin/bash
Arties-MacBook:~ artie$ echo "$IFS" |od -cb
0000000       \t  \n  \n                                                
          040 011 012 012                                                
0000004
Arties-MacBook:~ artie$

But I seem to have struck gold with my Pacifist question...

Here are some extracts from my correspondence with Charles Srstka regarding Pacifist's refusal to launch:
  • Your /usr/bin/codesign tool is corrupt, which is what is causing Pacifist not to launch.
  • The corruption is something I’ve seen a bunch of lately — I think there is a problem with the Snow Leopard installer.
  • Ones that have been pretty reliable for damage in the past have been /usr/bin/uname, /usr/bin/compress, and /usr/bin/chflags.
And, indeed, those three files, along with a bevy of others (If you'd like to see the complete laundry list generated by

Code:
ls -l /usr/bin

just ask.) are corrupt, and this

Code:
ls -l /usr/bin --> -r-xr-xr-x@  1 root   wheel         0 Jul 14  2009 du

looks to be my problem?

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire