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/usr/share/gromacs/shell-specific/gmx-completion-mdrun_mpi_d.openmpi.bash is in gromacs-openmpi 5.1.2-1ubuntu1.

This file is owned by root:root, with mode 0o644.

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1
complete -o nospace -F _gmx_mdrun_compl mdrun_mpi_d.openmpi