creating directories

[eclare108213]

When scripts create new directories, please have them first check whether the directory exists. This example came up when I tried to re-run a restart test in a previously used run directory, using a slightly different namelist configuration.

mkdir: cannot create directory `/net/scratch3/eclare/ICEPACK_RUNS/pinto_restart_col_1x1_debug.testrestart/diags_baseline': File exists

Let's keep an eye out for cases when we really do not want to re-use an existing directory, but most of the time it's probably okay for those of us doing manual shortcuts in/around the usually automated test suite.

[mattdturner]

What is the desired behavior? Do you want the scripts to error out if the directory already exists, or just skip the mkdir command and continue?

[eclare108213]

Just skip and continue. This is what we did in the old cice scripts:
if !(-d $EXEDIR) mkdir -p $EXEDIR