20 lines
495 B
Bash
20 lines
495 B
Bash
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#!/bin/bash
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if [ "$1" != "wlan0" ] && [ "$1" != "eth0" ]; then
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printf "Wrong Interface, \$1 must be eth0 or wlan0\n";
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exit 0
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fi
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if [ "$(whoami)" != "root" ]; then
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printf "Script must be executed as root\n"
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exit 0
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fi
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if [ "$(/sbin/ifconfig | grep eth0)" != "" ]; then
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ifdown eth0
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fi
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if [ "$(/sbin/ifconfig | grep wlan0)" != "" ]; then
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ifdown wlan0
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fi
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cp /etc/network/interfaces.$1 /etc/network/interfaces
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ifup $1
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/sbin/ifconfig
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printf "Network interface has been changed to %s\n" "$1"
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