1、list_sys_status.sh
显示系统使用的以下信息：
主机名、IP地址、子网掩码、网关、DNS服务器IP地址信息
#!/bin/bashIP=`ifconfig?eth0?|?head?-2?|?tail?-1?|?awk?‘{print?$2}‘?|?awk?-F":"?‘{print?$2}‘`ZW=`?ifconfig?eth0?|?head?-2?|?tail?-1?|?awk?‘{print?$3}‘?|?awk?-F":"?‘{print?$2}‘`GW=`route?-n?|?tail?-1?|?awk?‘{print?$2}‘`HN=`hostname`DNS=`head?-1?/etc/resolv.conf?|?awk?‘{print?$2}‘`echo?‘此机IP地址是‘?$IPecho?‘此机子网掩码是‘?$ZWecho?‘此机网关是‘?$GWecho?‘此机主机名是‘?$HNecho?‘此机DNS是‘?$DNS1.2.3.4.5.6.7.8.9.10.11.
2、mysqlbak.sh备份数据库目录脚本
#!/bin/bashDAY=`date?+%Y%m%d`SIZE=`du?-sh?/var/lib/mysql`echo?"Date:?$DAY"?>>?/tmp/dbinfo.txtecho?"Data?Size:?$SIZE"?>>?/tmp/dbinfo.txtcd?/opt/dbbak?&>?/dev/null?||?mkdir?/opt/dbbaktar?zcf?/opt/dbbak/mysqlbak-${DAY}.tar.gz?/var/lib/mysql?/tmp/dbinfo.txt?&>?/dev/nullrm?-f?/tmp/dbinfo.txt
crontab-e55?23?*/3?*?*?/opt/dbbak/dbbak.sh1.2.3.4.5.6.7.8.9.10.11.
3、每周日半夜23点半，对数据库服务器上的webdb库做完整备份
每备份文件保存到系统的/mysqlbak目录里
用系统日期做备份文件名 webdb-YYYY-mm-dd.sql
每次完整备份后都生成新的binlog日志
把当前所有的binlog日志备份到/mysqlbinlog目录下
#mkdir?/mysqlbak?#mkdir?/mysqlbinlog#service?mysqld?startcd?/shell#vi?webdb.sh#!/bin/bashday=`date?+%F`mysqldump?-hlocalhost?-uroot?-p123?webdb?>?/mysqlbak/webdb-${day}.sql
mysql?-hlocalhost?-uroot?-p?-e?"flush?logs"tar?zcf?/mysqlbinlog.tar.gz?/var/lib/mysql/mysqld-bin.0*#chmod?+x?webdb.sh?#crontab?-e30?23?*?*?7?/shell/webdb.sh1.2.3.4.5.6.7.8.9.10.11.12.13.
4、very.ser.sh(检查任意一个服务的运行状态)
只检查服务vsftpd httpd sshd crond、mysql中任意一个服务的状态
如果不是这5个中的服务，就提示用户能够检查的服务名并退出脚本
如果服务是运行着的就输出 "服务名 is running"
如果服务没有运行就启动服务
方法1：使用read写脚本#!/bin/bashread?-p?"请输入你的服务名:"?serviceif?[?$service?!=?‘crond‘?-a?$service?!=?‘httpd‘?-a?$service?!=?‘sshd‘?-a?$service?!=?‘mysqld‘?-a?$service?!=?‘vsftpd‘?];thenecho?"只能够检查‘vsftpd,httpd,crond,mysqld,sshd"exit?5fiservice?$service?status?&>?/dev/nullif?[?$??-eq?0?];thhenecho?"服务在线"elseservice?$service?startfi或 方法2：使用位置变量来写脚本if?[?-z?$1?];thenecho?"You?mast?specify?a?servername!"echo?"Usage:?`basename$0`?servername"exit?2fiif?[?$1?==?"crond"?]?||?[?$1?==?"mysql"?]?||?[?$1?==?"sshd"?]?||?[?$1?==?"httpd"?]?||?[?$1?==?"vsftpd"?];thenservice?$1?status?&>?/dev/nullif?[?$??-eq?0?];thenecho?"$1?is?running"elseservice?$1?startfielseecho?"Usage:`basename?$0`?server?name"echo?"But?only?check?for?vsftpd?httpd?sshd?crond?mysqld"?&&?exit2fi1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.
5、pc_noline.sh
输出192.168.1.0/24网段内在线主机的ip地址
统计不在线主机的台数，
并把不在线主机的ip地址和不在线时的时间保存到/tmp/ip.txt文件里
#!/bin/baship=192.168.1.j=0for?i?in?`seq?10?12`doping?-c?3?$ip$i?&>?/dev/nullif?[?$??-eq?0?];thenecho?在线的主机有：$ip$ielselet?j++echo?$ip$i?>>?/tmp/ip.txtdate?>>?/tmp/ip.txtfidoneecho?不在线的主机台数有?$j1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.
6、一个简单的网站论坛测试脚本
用交互式的输入方法实现自动登录论坛数据库，修改用户密码
[root@test1?scripts]#?vim?input.sh#!/bin/bashEnd=ucenter_membersMYsql=/home/lnmp/mysql/bin/mysqlread?-p?"Enter?a?website?directory?:?"?webdirWebPath=/home/WebSer/$webdir/configecho?$WebPathread?-p?"Enter?dbuser?name?:?"?dbuserecho?$dbuserread?-sp?"Enter?dbuser?password?:?"?dbpa***ead?-p?"Enter?db?name?:?"?dbnameecho?$dbnameread?-p?"Enter?db?tablepre?:?"?dbtablepreecho?$dbtablepreGlobalphp=`grep?"tablepre*"?$WebPath/config_global.php?|cut?-d?"‘"?-f8`Ucenterphp=`grep?"UC_DBTABLEPRE*"?$WebPath/config_ucenter.php?|cut?-d?‘.‘?-f2?|?awk?-F?"‘"?‘{print?$1}‘`if?[?$dbtablepre?==?$Globalphp?]?&&?[?$dbtablepre?==?$Ucenterphp?];then
?????Start=$dbtablepre
?????Pre=`echo?$Start$End`
?????read?-p?"Enter?you?name?:?"?userset?????echo?$userset
?????Result=`$MYsql?-u$dbuser?-p$dbpass?$dbname?-e?"select?username?from?$Pre?where?username=‘$userset‘\G"|cut?-d?‘?‘?-f2|tail?-1`
?????echo?$Result
?????if?[?$userset?==?$Result?];then
???????????read?-p?"Enter?your?password?:?"?userpass???????????passnew=`echo?-n?$userpass|openssl?md5|cut?-d?‘?‘?-f2`
???????????$MYsql?-u$dbuser?-p$dbpass?$dbname?-e?"update?$Pre?set?password=‘$passnew‘?where?username=‘$userset‘;"
???????????$MYsql?-u$dbuser?-p$dbpass?$dbname?-e?"flush?privileges;"
?????else
???????????echo?"$userset?is?not?right?user!"
???????????exit?1
?????fielse
?????exit?2fi1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.
7、slave_status.sh（检查mysql主从从结构中从数据库服务器的状态）
1）本机的数据库服务是否正在运行
2）能否与主数据库服务器正常通信
3）能否使用授权用户连接数据库服务器
4）本机的slave_IO进程是否处于YES状态
本机的slave_SQL进程是否处于YES状态
登录后复制
[root@test1?scripts]#?vim?test.sh#!/bin/bashnetstat?-tulnp?|?grep?:3306?>?/dev/nullif?[?$??-eq?0?];thenecho?"服务正在运行"?elseservice?mysqld?startfiping?-c?3?192.168.1.100?&>?/dev/nullif?[?$??-eq?0?];thenecho?"网络连接正常"?elseecho?"网络连接失败"fimysql?-h192.168.1.100?-uroot?-p123456?&>?/dev/nullif?[?$??-eq?0?];thenecho?"数据库连接成功"?elseecho?"数据库连接失败"fiIO=?mysql?-uroot?-p123?-e?"show?slave?status\G"?|?grep?Slave_IO_Running?|?awk?‘{print?$2}‘?>?/dev/nullSQL=?mysql?-uroot?-p123?-e?"show?slave?status\G"?|?grep?Slave_SQL_Running?|?awk?‘{print?$2}‘?/dev/nullif?[?IO==Yes?]?&&?[?SQL==Yes?];thenecho?“IO?and?SQL?连接成功”elseecho?"IO线程和SQL线程连接失败"fi