A command line program that helps configure a CalculiX project, and clean mesh files. Abaqus input file generated using Gmsh can be configured or converted to CalculiX input format if given as input to ccxpre.
To create a boilerplate CalculiX input file use,
ccxpre -b new.inp
To create a CalculiX input file and, configure an existing Abaqus input file generated using Gmsh such that only say surface elements are to be included and rename the element type to say CAX4 use,
ccxpre -i my_mesh.inp -e SUR=CAX4
Linux
git clone https://github.com/NitinNarayanaswamy/ccxpre
cd ccxpre
mkdir build bin
cd build
cmake ..
make
ln -s ~/ccxpre/bin/ccxpre0.1 ~/.local/bin/ccxpre