select+case選擇語句

（1）case語句

  語法：

                case  $1  in

                    pattern)

                    語句1

                    ;;

                    pattern)

                    語句2

                    ;;

                    pattern)

                    語句3

                    ;;               

                esac

(2) case案例

    

case $1 in 1) echo "安裝apache" ;; 2) echo "安裝mysql" ;; 3) echo "安裝php" ;; 4) echo "整合LAMP" ;; *) echo "please enter Number1|2|3|" esac

read -p "please enter Number:" number case $number in 1) echo -e "\033[36m安裝apache\033[0m" ;; 2) echo -e "\033[36m安裝mysql\033[0m" ;; 3) echo -e "\033[36m安裝php\033[0m" ;; 4) echo -e "\033[36mplease enter number $0|1|2|3|help\033[0m" ;; *) echo "please enter Number1|2|3|" esac

小結：

  case語句中的變量，能夠做爲腳本的第一個參數傳入，也能夠經過read -p  經過鍵盤輸入參數

selece語句

  語法：

            select  i   in   （表達式）

            do

                 語句

            done

案例：

     

PS3="please enter select menu:" select i in install_apache install_php install_mysql quit do case $i in install_apache) echo "安裝apache" ;; install_php) echo "安裝php" ;; install_mysql) echo "安裝mysql" ;; quit) echo "已退出安裝" exit 0 ;; *) echo "please enter menu $0 install_apache|install_php|install_mysql" ;; esac done

註釋：              (1) select語句和case語句能夠嵌套使用              (2) select做爲選擇菜單，case接收到選擇結果後，去執行出結果

select+case+function 一鍵安裝LAMP    #!/bin/bash #Auto install LAMP #By author jfedu.net 2017 #Define Path variables #Httpd define path variable H_FILES=httpd-2.2.32.tar.bz2 H_FILES_DIR=httpd-2.2.32 H_URL=http://mirrors.cnnic.cn/apache/httpd/ H_PREFIX=/usr/local/apache2/ #MySQL define path variable M_FILES=mysql-5.5.20.tar.gz M_FILES_DIR=mysql-5.5.20 M_URL=http://down1.chinaunix.net/distfiles/ M_PREFIX=/usr/local/mysql/ #PHP define path variable P_FILES=php-5.3.28.tar.bz2 P_FILES_DIR=php-5.3.28 P_URL=http://mirrors.sohu.com/php/ P_PREFIX=/usr/local/php5/ function httpd_install(){ if [[ "$1" -eq "1" ]]；then        wget -c $H_URL/$H_FILES &&  tar -jxvf $H_FILES && cd $H_FILES_DIR &&./configure --prefix=$H_PREFIX        if [ $? -eq 0 ]；then               make && make install        fi fi } function mysql_install(){ if [[ "$1" -eq "2" ]]；then wget -c $M_URL/$M_FILES &&  tar -xzvf $M_FILES && cd $M_FILES_DIR &&yum install cmake ncurses-devel -y ；cmake . -DCMAKE_INSTALL_PREFIX=$M_PREFIX \ -DMYSQL_UNIX_ADDR=/tmp/mysql.sock \ -DMYSQL_DATADIR=/data/mysql \ -DSYSCONFDIR=/etc \ -DMYSQL_USER=mysql \ -DMYSQL_TCP_PORT=3306 \ -DWITH_XTRADB_STORAGE_ENGINE=1 \ -DWITH_INNOBASE_STORAGE_ENGINE=1 \ -DWITH_PARTITION_STORAGE_ENGINE=1 \ -DWITH_BLACKHOLE_STORAGE_ENGINE=1 \ -DWITH_MYISAM_STORAGE_ENGINE=1 \ -DWITH_READLINE=1 \ -DENABLED_LOCAL_INFILE=1 \ -DWITH_EXTRA_CHARSETS=1 \ -DDEFAULT_CHARSET=utf8 \ -DDEFAULT_COLLATION=utf8_general_ci \ -DEXTRA_CHARSETS=all \ -DWITH_BIG_TABLES=1 \ -DWITH_DEBUG=0 if [ $? -eq 0 ]；then     make && make install     echo -e "\n\033[32m-----------------------------------------------\033[0m"                 echo -e "\033[32mThe $M_FILES_DIR Server Install Success !\033[0m"         else                 echo -e "\033[32mThe $M_FILES_DIR Make or Make install ERROR,Please Check......"                 exit 0 fi /bin/cp support-files/my-small.cnf  /etc/my.cnf /bin/cp support-files/mysql.server /etc/init.d/mysqld chmod +x /etc/init.d/mysqld chkconfig --add mysqld chkconfig mysqld on fi } function php_install(){ if [[ "$1" -eq "3" ]]；then            yum install  libxml2-devel  perl-devel  perl  libtool* -y         wget -c $P_URL/$P_FILES &&  tar -jxvf $P_FILES && cd $P_FILES_DIR &&./configure --prefix=$P_PREFIX --with-config-file-path=$P_PREFIX/etc --with-mysql=$M_PREFIX --with-apxs2=$H_PREFIX/bin/apxs         if [ $? -eq 0 ]；then                 make ZEND_EXTRA_LIBS='-liconv' && make install                 echo -e "\n\033[32m-----------------------------------------------\033[0m"                 echo -e "\033[32mThe $P_FILES_DIR Server Install Success !\033[0m"         else                 echo -e "\033[32mThe $P_FILES_DIR Make or Make install ERROR,Please Check......"                 exit 0         fi fi } function lamp_config(){ if [[ "$1" -eq "4" ]]；then        sed -i '/DirectoryIndex/s/index.html/index.php index.html/g' $H_PREFIX/conf/httpd.conf        $H_PREFIX/bin/apachectl restart         echo "AddType     application/x-httpd-php .php" >>$H_PREFIX/conf/httpd.conf        IP=`ifconfig eth0|grep "Bcast"|awk '{print $2}'|cut -d: -f2`        echo "You can to access http://$IP/" cat >$H_PREFIX/htdocs/index.php<<EOF <?php phpinfo()； ?> EOF fi } PS3="Please enter you select install menu:" select i in http mysql php config quit do   case $i in        http)        httpd_install 1        ；；        mysql)        mysql_install 2        ；；        php)        php_install 3        ；；        config)        lamp_config 4        ；；        quit)        exit esac done