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114 ira 1 
#!/bin/bash
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REMOUNT_DIR="/data"
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HELP_MSG="Please choose how to remount ${REMOUNT_DIR}: 'ro' or 'rw'."
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if [ -z "$1" ]; then
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    echo "${HELP_MSG}"
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    exit
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fi
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if [ "ro" = "$1" ]; then
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    echo "Remounting ${REMOUNT_DIR} read-only"
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    sudo mount -o remount,ro "${REMOUNT_DIR}"
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    exit
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fi
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if [ "rw" = "$1" ]; then
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    echo "Remounting ${REMOUNT_DIR} read-write"
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    sudo mount -o remount,rw "${REMOUNT_DIR}"
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    exit
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fi
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118 ira 23 
if [ "stat" = "$1" ]; then
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    if [ -z "$(cat /etc/mtab | grep '/data' | grep 'ro')" ]; then
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        echo "Read-Write"
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    else
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        echo "Read-Only"
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    fi
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    exit
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fi
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114 ira 32 
echo "${HELP_MSG}"