/usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher > /mnt/mysqlBackup/db_`date +%F`.sql



Example of how shell automatically backs up mysql database every day
This article mainly shares with you examples of how shell automatically backs up mysql database every day. I hope it can help you.
Recommended related mysql video tutorials: "mysql tutorial"
/usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher > /mnt/mysqlBackup/db_`date +%F`.sql
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Notes: /usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher > /mnt/mysqlBackup/db_`date +%F`.sql
1. Execute /usr/bin/mysqldump;
2. --opt is the collective name of quick, add-drop-table, add-locks, extended-insert and lock-tables parameters, which are generally used. , search for the specific meaning by yourself;
3. -u database user name -p database user password -h database address database name> exported file path;
4. `date +%F` is the current generated in the shell The date is in the format of 2015-11-05, so the file name generated when exported successfully is db_2015-11-05.sql;
5. Download the generated sql file, open it with a text editor for inspection, and import the test database locally. Check to see if there are any problems;
#!/bin/sh# Database infoDB_USER="batsing"DB_PASS="batsingpw"DB_HOST="localhost"DB_NAME="timepusher"# Others varsBIN_DIR="/usr/bin"
#the mysql bin pathBCK_DIR="/mnt/mysqlBackup"
#the backup file directoryDATE=`date +%F`
# TODO# /usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher >
/mnt/mysqlBackup/db_`date +%F`.sql$BIN_DIR/mysqldump --opt -u$DB_USER -p$DB_PASS -h$DB_HOST $DB_NAME >
$BCK_DIR/db_$DATE.sql#还原数据库#用mysql-front导入前一天的 *.sql 文件即可恢复数据
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Save to a file or upload to /usr/local/apache/htdocs/timepusher/sqlBak/ sqlAutoBak.sh4. Test the Shell script1. Enter the script file directory chmod +x sqlAutoBak.sh to add execution permission, otherwise an error Permission denied #!/bin/sh# Database infoDB_USER="batsing"DB_PASS="batsingpw"DB_HOST="localhost"DB_NAME="timepusher"# Others varsBIN_DIR="/usr/bin" #the mysql bin pathBCK_DIR="/mnt/mysqlBackup" #the backup file directoryDATE=`date +%F` # TODO# /usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher > /mnt/mysqlBackup/db_`date +%F`.sql$BIN_DIR/mysqldump --opt -u$DB_USER -p$DB_PASS -h$DB_HOST $DB_NAME > $BCK_DIR/db_$DATE.sql#还原数据库#用mysql-front导入前一天的 *.sql 文件即可恢复数据
2../ sqlAutoBak.sh, if the uploaded file is written in Windows, an error may be reported
/bin/sh^M: bad interpreter: No such file or directory
3. After modification, upload and continue executing ./sqlAutoBak.sh, no error is reported. Check the exported sql file again.
2 , modify sqlAutoBak.sh to the following
#!/bin/sh# Database infoDB_USER="batsing"DB_PASS="batsingpw"DB_HOST="localhost"DB_NAME="timepusher"# Others varsBIN_DIR="/usr/bin" #the mysql bin pathBCK_DIR="/mnt/mysqlBackup" #the backup file directoryDATE=`date +%F` # TODO# /usr/bin/mysqldump --opt -ubatsing -pbatsingpw -hlocalhost timepusher > /mnt/mysqlBackup/db_`date +%F`.sql# $BIN_DIR/mysqldump --opt -u$DB_USER -p$DB_PASS -h$DB_HOST $DB_NAME > $BCK_DIR/db_$DATE.sql$BIN_DIR/mysqldump --opt -u$DB_USER -p$DB_PASS -h$DB_HOST $DB_NAME | gzip > $BCK_DIR/db_$DATE.sql.gz# 还原数据库# 把 *.sql.gz 使用gunzip 或 本地的解压软件 解压为 *.sql 文件# 用mysql-front导入前一天的 *.sql 文件即可恢复数据
4. Download it locally and open it with decompression software. After decompression, you can see the real *.sql file inside.
crontab -e
00 05 * * * /bin/sh /usr/local/apache/htdocs/timepusher/sqlBak/sqlAutoBak.sh#每天早上 5:00am 执行
crontab -l
$BIN_DIR/mysqldump --opt -u$DB_USER -p$DB_PASS -h$DB_HOST $DB_NAME --skip-lock-tables| gzip > $BCK_DIR/db_$DATE.sql.gz
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