http://www.purl.org/tcl/home/man/tcl8.4/TclCmd/pwd.htm 

'pwd' is always a fully normalized path (at least in Tcl 8.4a4 or newer).

'pwd' may actually lie inside a virtual filesystem (and therefore be different to the OS'es perception of the pwd), if any are mounted.

'pwd' can actually change under some circumstances without the use of 'cd', for example if 'pwd' is inside a directory which is deleted with 'file delete -force'.

----
[Tcl syntax help]
- [Arts and crafts of Tcl-Tk programming]
- [Category Command]
----