Shell script: Use rsync to back up files/directories

In this article we introduce a shell script that uses the rsync command to back up files/directories on your local Linux machine to a remote Linux server. Using this script will implement the backup interactively, and you will need to provide the host name/IP address and folder location of the remote backup server. We use a separate list file in which you need to list the files/directories to be backed up. We have added two scripts, and the first script asks for the password after each copy of the file (if you enable SSH key verification, then the password is not asked), and in the second script, you will only be prompted to enter the password at a time.

We intend to back up bckup.txt,dataconfig.txt,docs and orcledb.

[Email protected] tmp]# ls-l

Total 12

-rw-r--r--. 1 root root 0 may 10:43 bckrsync.sh

-rw-r--r--. 1 root root 0 may 10:44 Bckup.txt

-rw-r--r--. 1 root root 0 may 10:46 Dataconfig.txt

Drwxr-xr-x. 2 root root 4096 may 10:45 docs

Drwxr-xr-x. 2 root root 4096 may 10:44 OracleDB

The Bckup.txt file contains the details of the files/directories that need to be backed up

[Email protected] tmp]# Cat/tmp/bckup.txt

/tmp/oracledb

/tmp/dataconfig.txt

/tmp/docs

[Email protected] tmp]#

Script 1:

#!/bin/bash

# Save the path of the backup list file to a variable

backupf= '/tmp/bckup.txt '

# Enter a hint message

echo "Shell Script Backup Your files/directories Using rsync"

# Check if the target server is entered and prompt the user for input if empty

while [x$desthost = "x"]; Do

# Prompt user to enter destination server address and save to variable

Read-p "Destination backup Server:" Desthost

# End Loop

Done

# Check if the destination folder is entered, and if it is empty, prompt the user again to enter

while [X$destpath = "x"]; Do

# Prompt user to enter target folder and save to variable

Read-p "Destination Folder:" DestPath

# End Loop

Done

# Read the backup list file row by line

For line in ' Cat $BACKUPF '

# work on every line

Do

# Displays the file/folder name to be copied

echo "Copying $line ... "

# Copy files/folders to target location via rsync

Rsync-ar "$line" "$desthost": "$destpath"

# show Complete

echo "Done"

# End

Done

Run a script with output results

[R[email protected] tmp]#./bckrsync.sh

Shell Script Backup Your files/directories Using rsync

Destination Backup server:104.*.*.41

Destination Folder:/tmp

Copying/tmp/oracledb ...

The authenticity of host ' 104.*.*.41 (104.*.*.41) ' can ' t be established.

ECDSA key fingerprint is 96:11:61:17:7F:FA: ...

Is you sure want to continue connecting (yes/no)? Yes

warning:permanently added ' 104.*.*.41 ' (ECDSA) to the list of known hosts.

[Email protected]*.*.41 ' s password:

Done

Copying/tmp/dataconfig.txt ...

[Email protected]*.*.41 ' s password:

Done

Copying/tmp/docs ...

[Email protected]*.*.41 ' s password:

Done

[Email protected] tmp]#

Script 2:

#!/bin/bash

# Save the path of the backup list file to a variable

backupf= '/tmp/bckup.txt '

# Enter a hint message

echo "Shell Script Backup Your files/directories Using rsync"

# Check if the target server is entered and prompt the user for input if empty

while [x$desthost = "x"]; Do

# Prompt user to enter destination server address and save to variable

Read-p "Destination backup Server:" Desthost

# End Loop

Done

# Check if the destination folder is entered, and if it is empty, prompt the user again to enter

while [X$destpath = "x"]; Do

# Prompt user to enter target folder and save to variable

Read-p "Destination Folder:" DestPath

# End Loop

Done

# Check if the target server password is entered, and if it is empty, prompt the user to enter

while [X$password = "x"]; Do

# Prompt user to enter password and save to variable

# using the-S option does not echo the entered password

Read-sp "Password:" Password

# End Loop

Done

# Read the backup list file row by line

For line in ' Cat $BACKUPF '

# work on every line

Do

# Displays the file/folder name to be copied

echo "Copying $line ... "

# Use expect to enter the password in the script

/usr/bin/expect << EOD

# Recommended setting timeout is-1

Set Timeout-1

# Copy files/folders to target location via rsync, use expect components spawn command

Spawn Rsync-ar ${line} ${desthost}:${destpath}

# The previous line command waits for "password" prompt

Expect "*?assword:*"

# provide the password in the script

Send "${password}\r"

# Wait for the file terminator (the remote server has finished processing everything)

Expect EOF

# End Expect script

EOD

# Show End

echo "Done"

# complete

Done

Hopefully these scripts will help you with your backup!!

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Shell script: Use rsync to back up files/directories