How to source files from other directories?

[EmadOgail]

Dear friends,
I am new to OpenSees and TCL language.
I want to ask a question, when running OpenSees, can I source the tcl files from another directory?
In other words, instead of moving the tcl files to the same directory of OpenSees, is there any was else to source the files while keeping the files at their directories?
This will help me in arranging the files.
Thank you.

[mhscott]

Yes, source the path to the file, e.g.

source ../file.tcl
source subdir/file.tcl
source c:\path\to\file.tcl