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48 lines
799 B
Bash
48 lines
799 B
Bash
#!/usr/bin/bash
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# assumes only two NET: entries and toggles with comments
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toggle() {
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in_net=""
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current_net=""
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while read -r line; do
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# net
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if [[ $line =~ ^#\ *NET: ]];then
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current_net=${line#*:}
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in_net=y
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echo "$line"
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continue
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fi
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# end net
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if [[ -n $in_net && $line =~ ^\ *$ ]]; then
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in_net=""
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current_net=""
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echo "$line"
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continue
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fi
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# if in net and disabled, enable
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if [[ -n $in_net && $line =~ ^# ]]; then
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echo "${line##\#}"
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continue
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fi
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# if in net and enabled, disable
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if [[ -n $in_net && ! $line =~ ^# ]]; then
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echo "#${line}"
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continue
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fi
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echo "$line"
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done < /etc/resolv.conf
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}
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tmpfile=$(mktemp)
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toggle >| "$tmpfile"
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sudo cp "$tmpfile" /etc/resolv.conf
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