Fix -np warning by RUN_CMD_FCST

[chan-hoo]

DESCRIPTION OF CHANGES:

Since RUN_CMD_FCST causes the warning of "-np: command not found", its expression in 'setup.sh' is changed.

TESTS CONDUCTED:

WE2E tests on WCOSS Dell:

• grid_RRFS_CONUS_25km_ics_FV3GFS_lbcs_FV3GFS_suite_GFS_v15p2
• grid_RRFS_CONUS_13km_ics_FV3GFS_lbcs_FV3GFS_suite_GFS_v15p2
• grid_RRFS_CONUS_3km_ics_FV3GFS_lbcs_FV3GFS_suite_GFS_v15p2

ISSUE:

Fixes issue mentioned in #632

[gsketefian]

I ran into this as well. I found the easy fix is to put double-quotes around the value of RUN_CMD_FCST in var_defns.sh. To do that, I changed the line in setup.sh that writes RUN_CMD_FCST to var_defns.sh from

RUN_CMD_FCST=$(eval echo ${RUN_CMD_FCST})

to

RUN_CMD_FCST="$(eval echo \'${RUN_CMD_FCST}\')"

The single quotes around ${RUN_CMD_FCST} are so that ${PE_MEMBER01} is not expanded before writing to var_defns.sh. This is something that @mkavulich would like to be implemented in var_defns.sh, i.e. defining variables in terms of already-defined variables in that file. @chan-hoo, can you try just changing this one line (without making any other changes) and seeing if the tests work? Thanks.

[chan-hoo]

@gsketefian , it worked on wcoss, too.

[gsketefian]

Great, thanks! Approving now.