【汇总】Linux常用脚本shell

【crontab】

#每天6:00 执行a.sh
00 6 * * * /bin/sh /home/work/rxShell/a.sh

#每天3:20 执行a1.sh
20 3 * * * /bin/sh /home/work/rxShell/a1.sh

#每隔10分钟 执行b.sh
*/10 * * * * /bin/sh /home/work/rxShell/b.sh

#每隔60分钟 执行c.sh
*/60 * * * * /bin/sh /home/work/rxShell/c.sh

#x:50 执行 d.sh
50 0,7,8,9,10,11,12,14,15,16,17,18,19,20,21,22,23 * * * /bin/sh /home/work/rxShell/d.sh

---

【备份数据库】

cd ~/backdb/
#定义文件名
before_filename="qgzs.sql"
after_filename="qgzs_`date +%Y_%m_%d`.tar.gz"

#备份导出数据库
/usr/local/mysql/bin/mysqldump -h localhost -uroot -proot qgzs > ${before_filename}

#tar压缩打包
tar zcvf ${after_filename} ${before_filename}

#删除备份前的文件
rm -rf ${before_filename}

---

cd ~/backdb/temp_table/
#自定义输入要导出的表名
echo "Please Enter table name:"
read tbname

#定义文件名
before_filename="${tbname}.sql"
after_filename="${tbname}_`date +%Y_%m_%d`.tar.gz"

#备份导出数据库
/usr/local/mysql/bin/mysqldump -h localhost -uroot -proot qgzs $tbname > ${before_filename}

#tar压缩打包
tar zcvf ${after_filename} ${before_filename}

#删除备份前的文件
rm -rf ${before_filename}

---

【本地无需每次登陆操作远程服务器】

#!/usr/bin/expect -f 
set ip 192.168.1.201
set password meimiao1905
set timeout 10 
spawn ssh root@$ip 
expect { 
"*yes/no" { send "yes
"; exp_continue} 
"*password:" { send "$password
" } 
} 
expect "#*"
send "cd pub.sh
"
interact