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if [ $1 = -o ]; then
[process the -o option]
shift
fi
[normal processing of arguments...]
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{
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if [ -n "$(echo $1 | grep '^-[0-9][0-9]*$')"
]; then
howmany=$1
shift
elif [ -n "$(echo $1 | grep '^-')" ]; then
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service iptables save
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