mirror of
https://github.com/bigbeartechworld/big-bear-scripts.git
synced 2026-03-31 06:24:02 -04:00
222e6af258
This commit refactors all the shell scripts to use `#!/usr/bin/env bash` instead of `#!/bin/bash`. This change ensures that the scripts will run with the system's default Bash interpreter, even if it is not located at the standard `/bin/bash` path.
31 lines
972 B
Bash
31 lines
972 B
Bash
#!/usr/bin/env bash
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# Define the path to the resolv.conf file
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resolv_conf="/etc/resolv.conf"
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# Display the current nameserver entry
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current_dns_server=$(grep '^nameserver' "$resolv_conf" | awk '{print $2}')
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echo "Current DNS server: $current_dns_server"
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# Prompt the user for DNS server input or use default
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read -p "Enter new DNS server IP (default is 1.1.1.1): " dns_server
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dns_server=${dns_server:-1.1.1.1}
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# Check if the provided DNS server resolves correctly
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if nslookup bigbeartechworld.com "$dns_server" &> /dev/null; then
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echo "$dns_server can resolve correctly."
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else
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echo "$dns_server cannot resolve. Exiting without making changes."
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exit 1
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fi
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# Backup the original resolv.conf file
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cp "$resolv_conf" "$resolv_conf.bak"
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# Replace nameserver entries with the user-provided or default DNS server
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sed -i "s/nameserver.*/nameserver $dns_server/" "$resolv_conf"
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# Display the updated resolv.conf
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echo "Updated /etc/resolv.conf:"
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cat "$resolv_conf"
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