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Add FreeBSD shm cleanup script

#!/usr/bin/env bash

# get the memory
SHMIDS=$(sudo ipcs -a | egrep "^m" | grep freem | awk '{ print $2 }')

for SHMID in $SHMIDS
do
    echo "Removing shared memory segment ID ${SHMID}..."
    sudo ipcrm -m ${SHMID}
done

SEMIDS=$(sudo ipcs -a | egrep "^s" | grep freem | awk '{ print $2}')

for SEMID in $SEMIDS
do
    echo "Removing semaphore ID ${SEMID}..."
    sudo ipcrm -s ${SEMID}
done