#!/bin/bash # Program: # remove shell script for client uninstall # Author: # Waue, Shunfa, Rock {waue, shunfa, rock}@nchc.org.tw # Version: # 1.0 # History: # # 需要 master_install 設定的參數區 # Master IP here Master_IP_Address=140.110.138.179 # Master Hostname here Master_Hostname=input_your_master_hostname ########## echo function ########## function debug_info () { if [ $? -eq 0 ]; then echo -e "\033[1;35;40m info - $1 \033[0m" fi } function show_info () { if [ $? -eq 0 ]; then echo -e "\033[1;32;40m $1 \033[0m" fi } ##########end echo function ########## function load_default_lang(){ lang=$(locale | grep 'LANG=' | cut -d "=" -f2) # Default: source english . lang/lang_en_US # if locale is zh then source chinese echo $lang | grep 'zh' >> /dev/null && source lang/lang_zh_TW } # check root function check_root(){ debug_info "check_root" if [ $USER != "root" ]; then show_info "$CR_check_root_1" # "請切換成 root 身份執行移除程式!!!" exit fi show_info "$CR_check_root_2" # "已確認為root身份, 將繼續執行此移除程式!" } # shutdown service function shutdown_service () { show_info "$CR_shutdown_service_echo_1" # "關閉本機服務..." su nutchuser -c "/opt/nutchez/nutch/bin/hadoop-daemon.sh stop datanode" su nutchuser -c "/opt/nutchez/nutch/bin/hadoop-daemon.sh stop tasktracker" show_info "$CR_shutdown_service_echo_2" # "本機服務已關閉" } # 移除檔案及資料夾 function remove_folders () { show_info "$CR_remove_folders_echo_1" # "正在刪除安裝時所建立的檔案及資料夾..." rm -rf /opt/nutchez rm -rf /var/nutchez show_info "$CR_remove_folders_echo_2" # "安裝時所建立的檔案及資料夾已刪除" } # 還原/etc/hosts function edit_hosts () { show_info "$CR_edit_hosts_echo_1" # "修改/etc/hosts..." # Line_NO=`cat /etc/hosts | grep -n $Master_IP_Address | sed 's/:.*//g'` # if [[ $Line_NO -ge 1 ]]; then # sed -i ''$Line_NO'd' /etc/hosts # fi cat > /etc/hosts < /home/nutchuser/nutchez/system/hosts.bak show_info "$CR_edit_hosts_echo_2" # "完成修改/etc/hosts" } # 移除使用者 function user_delete () { show_info "$CR_user_delete_echo_1" # "正在刪除nutchuser使用者..." userdel -r nutchuser show_info "$CR_user_delete_echo_2" # "使用者nutchuser已刪除" } # Main function function main () { load_default_lang check_root show_info "$CR_main_echo_1" #"警告 - 此一程式為移除此用戶端的nutch node, 若您為誤執行此一程式, 請按Ctrl+c離開此程序!" show_info "$CR_main_echo_2" #"本執行程序將會移除安裝nutchEZ時所新增的檔案及nutchuser使用者帳號" # 詢問是否繼續 read -p "$CR_main_echo_3" confirm # "請問是否確定移除此一節點:1.確定 2.取消" # 確認移除 if [ $confirm -eq 1 ]; then shutdown_service remove_folders edit_hosts user_delete show_info "$CR_main_echo_4" # "移除程序已完成!" elif [ $confirm -eq 2 ]; then show_info "$CR_main_echo_5" # "您已取消移除程序!" show_info "$CR_main_echo_6" # "若要移除請再重新執行!" fi } main