Terminal commands

Help

gmsh --info

Mesh and save without the GUI

gmsh carre.geo -2

The output file can be set by adding the option -o FileName. To mesh in 3D, replace -2 by -3.

Multi-Threading

If GMSH is compiled with OpenMP then mesh can be generated in parallel using NUM_THREADS threads:

gmsh file.geo -nt NUM_THREADS [...]

Modifying a value of a Constant: -setnumber

For example, to change the value of h to 10 :

gmsh L.geo -2 -setnumber h 10

To modify multiple values, the -setnumber option must be typed each time

gmsh L.geo -2 -setnumber h 10 -setnumber xmax 50

Log file

gmsh L.geo -2 $1>logfile