dotfiles/bin/bw

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#!/usr/bin/env bash
unlimit() {
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tc qdisc del dev lo root
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}
limit() {
if [ "$1" = "5Mbps" ]; then
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tc qdisc del dev lo root
tc qdisc add dev lo handle 1: root htb default 11
tc class add dev lo parent 1:1 classid 1:11 htb rate 5000kbit
tc qdisc add dev lo parent 1:11 handle 10: netem delay 38ms loss 0.09%
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elif [ "$1" = "10Mbps" ]; then
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tc qdisc del dev lo root
tc qdisc add dev lo handle 1: root htb default 11
tc class add dev lo parent 1:1 classid 1:11 htb rate 10000kbit
tc qdisc add dev lo parent 1:11 handle 10: netem delay 32ms loss 0.09%
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elif [ "$1" = "20Mbps" ]; then
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tc qdisc del dev lo root
tc qdisc add dev lo handle 1: root htb default 11
tc class add dev lo parent 1:1 classid 1:11 htb rate 20000kbit
tc qdisc add dev lo parent 1:11 handle 10: netem delay 25ms loss 0.09%
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else
echo -e >&2 "\x1B[31;1merror:\x1B[0m preset $1 not found"
exit 1
fi
}
if [ $# -eq 0 ]; then
echo -e >&2 "\x1B[31;1merror:\x1B[0m expecting command"
exit 1
else
"$@"
fi