Linux-------scheduled backup files __linux

This paper mainly solves the problem of how to use the lftp command to backup files to FTP server in Linux Debian system.

Conditions:

1, Linux DEBIAN6 system, network connectivity is good.

2,/etc/apt/sources.list inside the URL is correct.

3, the FTP server's account and password is correct.

Thought:

1. The operation of the backup file is performed by a script.

2, in the Linux system under the regular execution of the script.

Content:

Step one: Learn how to execute scripts regularly under Linux systems

Method One, edit with crontab command

A. Crontab-u//Setting up a user's Cron service, which is normally required by the root user when executing this command

CRONTAB-L//list details of a user's cron service

Crontab-r//Remove cron service for no users

CRONTAB-E//Edit a user's cron service

B. When editing a cron service, there are some formatting and conventions for editing the content, input: Crontab-u root-e

C. Enter vi edit mode, the content of edit must conform to the following format: */1 * * * * * command

D. There are several special symbols in addition to the numbers: "*", "/" and "-", ",", * represents all the values within the range of the number, "/" for each meaning, "*/5" means every 5 units, "-" representing from a number to a number, "," separate several discrete numbers.

E. Examples:

Every morning at 6.

0 6 * * * echo "goodmorning."

Every two hours

0 */2 * * * echo "Have abreak now." >>/tmp/test.txt

Method Two, edit/etc/crontab

A. Shell=/bin/bash

Path=/sbin:/bin:/usr/sbin:/usr/bin

Mailto=root//If there is an error, or if there is data output, the data is sent to this account as mail

home=///user Run path, this is the root directory

B. Add a Timer + command to the end of a line such as method one

Step two: script to write backup files

1, compressed files through the zip command

A, Apt-get install ZIP//installation zip software

b, zip–r compressed file name. zip file File

2, through the LFTP landing FTP server

A, Apt-get install lftp//download lftp software

B, Lftp Ftp://user:passwd@ip:port

lftp ftp://User: Password @ip address: port number

3. Upload files via mput command

Mput need to upload the filename

4, the overall script example

1 #!/bin/bash

2

3 Mysqldump-uroot-pdebianc2013_database >/root/c2013_database.sql

This is the export database file

4 Zip-r Backup.zip/home/data/root/c2013_database.sql

Compress files

5

6 Lftp ftp://heqiunong:heqiunong@172.16.232.37:21 <<eof

Landing FTP

7 Mput/root/backup.zip

Execute upload command

                          8  EOF                                                                                                                                                                               

Exit

9

Ten RM C2013_database.sql

Delete intermediate files

One RM backup.zip

Step three, combine the first and second steps