You are building a Bash script to automate database backups. The script needs to create a compressed backup of a MySQL database, including all tables and data. Which command sequence correctly accomplishes this task, considering database security and efficiency?0.5 Marksmysqldump -u username -p'password' mydatabase > backup.sqlgzip backup.sqlmysql -u username -p'password' mydatabase | gzip > backup.sql.gzmysqldump -u username -p'password' mydatabase | gzip > backup.sql.gzmysqldump -u username -p'password' mydatabase | bzip2 > backup.sql.bz2mysql -u username -p'password' mydatabase > backup.sqlgzip backup.sql
Question
You are building a Bash script to automate database backups. The script needs to create a compressed backup of a MySQL database, including all tables and data. Which command sequence correctly accomplishes this task, considering database security and efficiency?0.5 Marksmysqldump -u username -p'password' mydatabase > backup.sqlgzip backup.sqlmysql -u username -p'password' mydatabase | gzip > backup.sql.gzmysqldump -u username -p'password' mydatabase | gzip > backup.sql.gzmysqldump -u username -p'password' mydatabase | bzip2 > backup.sql.bz2mysql -u username -p'password' mydatabase > backup.sqlgzip backup.sql
Solution
The correct command sequence to create a compressed backup of a MySQL database, including all tables and data, while considering database security and efficiency is:
mysqldump -u username -p'password' mydatabase | gzip > backup.sql.gz
This command sequence works as follows:
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"mysqldump -u username -p'password' mydatabase": This command is used to create a backup of the MySQL database. The "-u username" and "-p'password'" options are used to specify the username and password to connect to the MySQL server. The "mydatabase" is the name of the database you want to backup.
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"|": This is a pipe. It is used to pass the output of one command as input to another command.
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"gzip > backup.sql.gz": This command is used to compress the output of the mysqldump command. The ">" operator is used to redirect the output to a file. In this case, the output is redirected to a file named "backup.sql.gz".
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