Cobbler Server：自动修改IP设定
Cobbler Server所在的主机如果IP地址改掉了，那么Cobbler服务端也是需要做出相应变更的。
下面的脚本可以让你一键完成所有关于IP变更的配置：
使用方法：
auto_cobbler_change_ip.sh [新的IP地址]
如：
auto_cobbler.sh192.168.23.3
就好了。
代码脚本如下：
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#!/bin/bash # var purpose_ip="$1" purpose_ip_3slot=$(echo $purpose_ip | awk -F'.' '{print $1"."$2"."$3}') # display echo "Purpose IP = [$purpose_ip]" echo "3 Slot is: [$purpose_ip_3slot]" # function function modify_file_by_search() { # var target_filename="$1" string_search="$2" split_by=$3 string_purpose="$4" slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}') # display echo "==========================" echo "File: $target_filename" echo "Search: $string_search" echo "Split by: [$split_by]" echo "Purpose is = [$string_purpose]" echo "Slot number = [$slot_number]" # var by compute #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2) string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') # display echo "Old content is --> [$string_content]" # do echo "-------" echo "do modify" sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename # after #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev) string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev |sed 's/.$//') echo "-------" echo "after modify" echo "Content is --> [$string_content]" } function modify_file_by_search_1() { # var target_filename="$1" #string_search="$2" #split_by=$3 string_purpose="$2" slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}') # display echo "==========================" echo "File: $target_filename" #echo "Search: $string_search" #echo "Split by: [$split_by]" echo "Purpose is = [$string_purpose]" echo "Slot number = [$slot_number]" # var by compute #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2) string_content=$(cat $target_filename | grep "subnet" | grep "netmask" | grep "{" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') # display echo "Old content is --> [$string_content]" # do echo "-------" echo "do modify" sed -i "/subnet/s/$string_content/$string_purpose/g" $target_filename # after #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev) string_content=$(cat $target_filename | grep "subnet" | grep "netmask" | grep "{" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') echo "-------" echo "after modify" echo "Content is --> [$string_content]" } function modify_file_by_search_2() { # var target_filename="$1" string_search="$2" #split_by=$3 string_purpose="$3" slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}') # display echo "==========================" echo "File: $target_filename" echo "Search: $string_search" #echo "Split by: [$split_by]" echo "Purpose is = [$string_purpose]" echo "Slot number = [$slot_number]" # var by compute #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2) string_content=$(cat $target_filename | grep "$string_search" | awk '{print $3}' | grep -v "iface" | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') # display echo "Old content is --> [$string_content]" # do echo "-------" echo "do modify" sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename # after #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev) string_content=$(cat $target_filename | grep "$string_search" | awk '{print $3}' | grep -v "iface" | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') echo "-------" echo "after modify" echo "Content is --> [$string_content]" } function modify_file_by_search_3() { # var target_filename="$1" string_search="$2" #split_by=$3 string_purpose="$3" slot_number=$(echo "$string_purpose" | awk -F'.' -v count=0 '{for(i=1;i<=NF;i++){count=i} print count}') # display echo "==========================" echo "File: $target_filename" echo "Search: $string_search" #echo "Split by: [$split_by]" echo "Purpose is = [$string_purpose]" echo "Slot number = [$slot_number]" # var by compute #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2) string_content=$(cat $target_filename | grep "$string_search" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') # display echo "Old content is --> [$string_content]" # do echo "-------" echo "do modify" sed -i "/$string_search/s/$string_content/$string_purpose/g" $target_filename # after #string_content=$(cat $target_filename | grep "$string_search" | cut -d $split_by -f2 | rev | cut -d' ' -f1 | rev) string_content=$(cat $target_filename | grep "$string_search" | awk '{print $2}' | awk -F'.' -v slot_num=$slot_number '{for(i=1;i<=slot_num;i++){ printf $i"."} print "\n"}' | rev | cut -d' ' -f1 | rev | sed 's/.$//') echo "-------" echo "after modify" echo "Content is --> [$string_content]" } # settings modify_file_by_search "/etc/cobbler/settings" "^server" ':' $purpose_ip modify_file_by_search "/etc/cobbler/settings" "^next_server" ':' $purpose_ip # dhcp modify_file_by_search_3 "/etc/dhcp/dhcpd.conf" "next-server" $purpose_ip modify_file_by_search_1 "/etc/cobbler/dhcp.template" $purpose_ip_3slot modify_file_by_search_1 "/etc/dhcp/dhcpd.conf" $purpose_ip_3slot modify_file_by_search_2 "/etc/cobbler/dhcp.template" "option routers" $purpose_ip_3slot modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "option routers" $purpose_ip_3slot modify_file_by_search_2 "/etc/cobbler/dhcp.template" "option domain-name-servers" $purpose_ip_3slot modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "option domain-name-servers" $purpose_ip_3slot modify_file_by_search_2 "/etc/cobbler/dhcp.template" "range dynamic-bootp" $purpose_ip_3slot modify_file_by_search_2 "/etc/dhcp/dhcpd.conf" "range dynamic-bootp" $purpose_ip_3slot |
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Done。
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