# Pre- and post-files

For this cycle there are 2 pre-files which must be called before this cycle and 2 post-files which are called after each cycle.

- These files are optional. If they do not exist, this step is skipped.
- As required, these files must therefore be created as a subroutine. In general, a post-file is required to process the output variables stored in the local V.CYC. variables.
- Machine-specific adaptations, e.g. activation of the touch probe, can be carried out in the pre-file.
- The post-file can be used to process output variables, for example.

In addition, separate pre and post-files can be written for each cycle, with each file being valid for each cycle. The syntax is obtained from the cycle name+pre.nc or cycle name+post.nc.

There is a general pre-file and a general post-file which are used for all SysCalibTouchprobe cycles:

- SysCalibTouchprobePre.nc
- SysCalibTouchprobePost.nc

These files are only valid for this cycle and consist of the following:

Cyclename +1Pre or 1Post +.nc

- SysCalibTouchprobe1Pre.nc
- SysCalibTouchprobe1Post.nc