Как я постоянно и доверяю & rdquo; мой маршрутизатор?

У меня тоже была эта проблема. Поэтому я написал сценарий kidtimer, который позволяет вам определять время использования и итоговые значения. Проект можно найти в Github в следующем месте:

Это как его установить и использовать: [!d4 ] Скопируйте и вставьте код в файл с именем kidtimer.install.

#!/bin/bash
# Restrict kids computer access to specific hours and total time.
# By: Michael Groves - grover66_at_gmail_dot_com

#variables
basedir="/usr/local/kidtimer"
configdir="/etc/kidtimer"
Cdate=`/bin/date | awk '{ print $2" "$3 }'`
TUI=0
HOUR=`/bin/date +%H`
DOW=`/bin/date +%u`
WEEKEND="no"
[ "$DOW" == "6" ] && WEEKEND="yes"
[ "$DOW" == "7" ] && WEEKEND="yes"

#arguments
[ $# -eq 0 ] && TUI=1
[ $# -eq 1 ] && COMMAND=$1
[ $# -eq 2 ] && COMMAND=$1 && KID=$2
[ $# -eq 3 ] && COMMAND=$1 && KID=$2 && Time=$3

################# Subroutines ##################
################################################

go_check_install () {
if [ ! -e $basedir ]; then
    go_initialize
fi
}


go_initialize () {
/bin/mkdir -p $basedir/time
/bin/mkdir -p $basedir/schedule
/bin/cp $0 /usr/local/bin/kidtimer && chmod +x /usr/local/bin/kidtimer
echo "0 * * * *     root    /usr/local/bin/kidtimer hourly" > /etc/cron.d/kidtimer
echo "0 0 * * *     root    /usr/local/bin/kidtimer daily" >> /etc/cron.d/kidtimer
echo "* * * * *     root    /usr/local/bin/kidtimer check" >> /etc/cron.d/kidtimer
echo "@reboot       root    /usr/local/bin/kidtimer daily" >> /etc/cron.d/kidtimer
echo "@reboot       root    /usr/local/bin/kidtimer hourly" >> /etc/cron.d/kidtimer
/bin/mkdir $configdir
/usr/bin/touch $configdir/kid.list
go_create_message_files
echo "Kidtimer is now installed. Run /usr/local/bin/kidtimer to configure."
}


go_create_message_files () {
cat << EOF > $basedir/send5.sh
#!/bin/bash
Name=\$1
/bin/su -s /bin/bash -c 'DISPLAY=:0 /usr/bin/notify-send -i \
    /usr/share/pixmaps/gnome-set-time.png "ALERT" \
    "You will be logged out in 5 minutes."' \$Name
EOF
chmod +x $basedir/send5.sh
cat << EOF > $basedir/send4.sh
#!/bin/bash
Name=\$1
/bin/su -s /bin/bash -c 'DISPLAY=:0 /usr/bin/notify-send -i \
        /usr/share/pixmaps/gnome-set-time.png "ALERT" \
        "You will be logged out in 4 minutes."' \$Name
EOF
chmod +x $basedir/send4.sh
cat << EOF > $basedir/send3.sh
#!/bin/bash
Name=\$1
/bin/su -s /bin/bash -c 'DISPLAY=:0 /usr/bin/notify-send -i \
        /usr/share/pixmaps/gnome-set-time.png "ALERT" \
        "You will be logged out in 3 minutes."' \$Name
EOF
chmod +x $basedir/send3.sh
cat << EOF > $basedir/send2.sh
#!/bin/bash
Name=$1
/bin/su -s /bin/bash -c 'DISPLAY=:0 /usr/bin/notify-send -i \
        /usr/share/pixmaps/gnome-set-time.png "ALERT" \
        "You will be logged out in 2 minutes."' \$Name
EOF
chmod +x $basedir/send2.sh
cat << EOF > $basedir/send1.sh
#!/bin/bash
Name=\$1
/bin/su -s /bin/bash -c 'DISPLAY=:0 /usr/bin/notify-send -i \
        /usr/share/pixmaps/gnome-set-time.png "ALERT" \
        "You will be logged out in 1 minute."' \$Name
EOF
chmod +x $basedir/send1.sh
cat << EOF > $basedir/logout.sh
#!/bin/bash
Name=\$1
/usr/bin/pkill -KILL -u \$Name
rm -rf /tmp/kidtimer.shutdown.\$Name
EOF
chmod +x $basedir/logout.sh
cat << EOF > $basedir/schedule/blank
#hour weekday weekend (y/n)
00 n n
01 n n
02 n n
03 n n
04 n n
05 n n
06 n n
07 n n
08 y y
09 y y
10 y y
11 y y
12 y y
13 y y
14 y y
15 y y
16 y y
17 y y
18 y y
19 y y
20 n n
21 n n
22 n n
23 n n
#minutes weekday weekend
MAX 120 240
EOF
}


go_check () {
for I in `cat $configdir/kid.list`; do
        /usr/bin/users | grep -q $I
        if [ $? -eq 0 ]; then
                if [ -e $basedir/time/$I.ttl ]; then
                        C=`cat $basedir/time/$I.ttl`
                        C=$((C + 1))
                        echo $C > $basedir/time/$I.ttl
                else
                        echo 1 > $basedir/time/$I.ttl
                        C=1
                fi
        else
        go_clean_jobs $I
        exit 0
    fi
        # check total time.
        W="no"
        [ $DOW -eq 6 ] && W="yes"
        [ $DOW -eq 7 ] && W="yes"
        [ "$W" == "no" ] && TIME_LIMIT=`cat $basedir/schedule/$I | grep ^MAX | awk '{ print $2 }'`
        [ "$W" == "yes" ] && TIME_LIMIT=`cat $basedir/schedule/$I | grep ^MAX | awk '{ print $3 }'`
        if [ $C -ge $TIME_LIMIT ]; then
                if [ ! -e /tmp/kidtimer.shutdown.$I ]; then
                        /usr/bin/passwd $I -l
                        go_logout $I
                fi
        fi
done
}


go_clean_jobs () {
K=$1
for I in `/usr/bin/atq | awk '{ print $1 }' | sort`; do
    /usr/bin/at -c $I | grep kidtimer | grep -q $K
    [ $? -eq 0 ] && /usr/bin/at -d $I
done
[ -e /tmp/kidtimer.shutdown.$K ] && rm -rf /tmp/kidtimer.shutdown.$K
}


go_daily () {
for I in `cat $configdir/kid.list`; do
    ls -l $basedir/time/$I.ttl | grep -q "$Cdate"
    if [ ! $? -eq 0 ]; then
        echo "0" > $basedir/time/$I.ttl
    fi
done
}


go_hourly () {
if [ -s $configdir/kid.list ]; then
    for I in `cat $configdir/kid.list`; do
        if [ -e $basedir/schedule/$I ]; then
            [ "$WEEKEND" == "no" ] && TL=`cat $basedir/schedule/$I | grep ^MAX | awk '{ print $2 }'`
            [ "$WEEKEND" == "yes" ] && TL=`cat $basedir/schedule/$I | grep ^MAX | awk '{ print $3 }'`
            [ -e $basedir/time/$I.ttl ] && C=`cat $basedir/time/$I.ttl`
            [ $C -ge $TL ] && /usr/bin/passwd $I -l && exit 0
            [ "$WEEKEND" == "no" ] && R=`grep ^$HOUR $basedir/schedule/$I | awk '{ print $2 }'`
            [ "$WEEKEND" == "yes" ] && R=`grep ^$HOUR $basedir/schedule/$I | awk '{ print $3 }'`
            if [ "$R" == "y" ]; then
                /usr/bin/passwd $I -u
            else
                /usr/bin/passwd $I -l
                /usr/bin/users | grep -q $I && /usr/local/bin/kidtimer shutdown $I
            fi
        fi
    done
fi
}


go_logout () {
K=$1
echo "$basedir/send5.sh $K" | at now + 1 minutes
echo "$basedir/send4.sh $K" | at now + 2 minutes
echo "$basedir/send3.sh $K" | at now + 3 minutes
echo "$basedir/send2.sh $K" | at now + 4 minutes
echo "$basedir/send1.sh $K" | at now + 5 minutes
echo "$basedir/logout.sh $K" | at now + 6 minutes
touch /tmp/kidtimer.shutdown.$K
}


go_addtime () {
U=$KID
A=$Time
if [ "$KID" == "reset" ]; then
    echo "0" > $basedir/time/$U.ttl
    echo "Done."
    exit 0
elif [ "$KID" == "" ]; then
    echo "Error."
    echo "Syntax: addtime <user> <minutes|reset>"
    exit 1
else    
    C=`cat $basedir/time/$KID.ttl`
    C=$((C - Time))
    echo $C > $basedir/time/$KID.ttl
    echo "New total minutes is "$C"."
    echo "Done."
fi

/usr/bin/passwd $KID -u
}


go_tui () {
go_command_list
echo -n "Choose: "; read -e X
case "$X" in
1) go_setup_user
        ;;
2) go_modify_user
        ;;
3) go_remove_user
        ;;
4) go_list_users
    ;;
5) exit 0
        ;;
esac
go_tui
}


go_command_list () {
echo
echo "1) Setup user limits."
echo "2) Modify user limits."
echo "3) Remove user limits."
echo "4) List configured users."
echo "5) Quit."
echo
}


go_list_users () {
echo
echo "Users configured for kidtimer:"
if [ -s $configdir/kid.list ]; then
    cat $configdir/kid.list
else
    echo "No configured users."
fi
}

go_setup_user () {
echo
echo -n "Username: "; read -e U
/usr/bin/id $U > /dev/null 2>&1
if [ $? -eq 0 ]; then
    /bin/cp $basedir/schedule/blank $basedir/schedule/$U
    echo "0" > $basedir/time/$U.ttl
    echo $U >> $configdir/kid.list
    echo "Done."
    echo
    echo -n "Modify limits now ?(y/n): "; read -e M
    if [ "$M" == "y" ]; then
        if [ -e /usr/bin/nano ]; then
                    /usr/bin/nano $basedir/schedule/$U
                    echo "Done."
            else
                    /usr/bin/vi $basedir/schedule/$U
                    echo "Done."
            fi
    fi
else
    echo "Error. User does not exist. Please create user using the useradd command first."
fi
}


go_modify_user () {
echo
echo -n "Username: "; read -e U
grep -q ^$U $configdir/kid.list
if [ $? -eq 0 ]; then
    if [ -e /usr/bin/nano ]; then
        /usr/bin/nano $basedir/schedule/$U
        echo "Done."
    else
        /usr/bin/vi $basedir/schedule/$U
        echo "Done."
    fi
else
    echo "Error. User not setup. Please setup user first."
fi
}


go_remove_user () {
echo
echo -n "Username: "; read -e U
grep -q ^$U $configdir/kid.list
if [ $? -eq 0 ]; then
    grep -v ^$U $configdir/kid.list > /tmp/kidtimer.tmp
    cat /tmp/kidtimer.tmp > $configdir/kid.list
    echo "Done."
else
    echo "Error. User is not setup."
fi
}


go_help () {
echo
echo "Commands:"
echo "--------------------------------------------------------------------------------"
echo "addtime <user> <minutes> ... Increases allowed time for the day."
echo "logout <user>            ... Starts logout sequence for user."
echo "hourly                   ... Enables/disables user access based on the schedule."
echo "daily                    ... Resets time for the new day."
echo "help                     ... This list."
echo "--------------------------------------------------------------------------------"
}

###################### Code ####################
################################################

go_check_install
[ $TUI -eq 1 ] && go_tui

case "$COMMAND" in
addtime) go_addtime
    ;;
logout) go_logout $KID
    ;;
initialize) go_initialize
    ;;
hourly) go_hourly
    ;;
daily) go_daily
    ;;
check)  go_check
    ;;
-h) go_help
    ;;
help) go_help
    ;;
esac
exit 0

sudo ./kidtimer.install

sudo kidtimer

Для справки:

sudo kidtimer help

Добавить время в учетную запись пользователя (только для этого дня):

sudo kidtimer addtime user minutes

Особенности:

Ключевые файлы:

/etc/kidtimer/kid.list
/etc/cron.d/kidtimer
/usr/local/kidtimer/schedule/<user>
/usr/local/kidtimer/time/<user>.ttl
/usr/local/bin/kidtimer

Cronjobs:

Примечание:

Приложение использует notify-send, чтобы предупредить, что время пользователя заканчивается. Когда время истекает, все пользовательские процессы прекращаются, поэтому, пожалуйста, подготовьте пользователя.