script_tool_for_linux.bash: Linux 环境下的 hosts 一键部署脚本

#!/bin/sh
#
# script_tool_for_linux
#
# Use command: `sudo sh script_tool_for_linux.sh` or
#    `su -c 'sh script_tool_for_linux.sh'`
# to update your hosts file.
#
# WARNING: the script CAN NOT replace others' hosts rules.
#   If you have hosts rules provided by others, you may get conflict.
#
if [ `id -u` -eq 0 ]; then
curl -fLo /tmp/fetchedhosts 'https://raw.githubusercontent.com/racaljk/hosts/master/hosts'
sed -i '/# Copyright (c) 2014/,/# Modified hosts end/d' /etc/hosts

sed -i "s/localhost/`hostname`/g" /tmp/fetchedhosts

cat /tmp/fetchedhosts >> /etc/hosts
rm -f /tmp/fetchedhosts

echo 'Success.'
else
echo 'Permission denied, are you root?'
fi

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