# Getting Started with OpenSees -- Summary of Model-Building Input File
The following is a compilation of all the commands necessary to build the model:
```Tcl model basic -ndm 2 -ndf 3
node 1 0 0 node 2 504 0 node 3 0 432 node 4 504 432
fix 1 1 1 1 fix 2 1 1 1 fix 3 0 0 0 fix 4 0 0 0
mass 3 5.18 0. 0. mass 4 5.18 0. 0.
geomTransf Linear 1
element elasticBeamColumn 1 1 3 3600 4227 1080000 1 element elasticBeamColumn 2 2 4 3600 4227 1080000 1 element elasticBeamColumn 3 3 4 5760 4227 4423680 1
recorder Node -file Node3.out -time -node 3 -dof 1 2 disp recorder Element -file Element1.out -time -ele 1 force ```
The above commands can be input line by line at the OpenSees command prompt:
Otherwise, they can be saved into an input file called example.tcl. This file can then be sourced in from the OpenSees command line:
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