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Full Discussion: Shell backup script modification
Top Forums Shell Programming and Scripting Shell backup script modification Post 303009280 by galapagos8000 on Tuesday 12th of December 2017 03:44:43 AM
Old 12-12-2017
Shell backup script modification
so I'm using this shell script someone made to backup data on a server in an archive (gpg encrypted) and upload to an FTP (meant to be run as a cron job daily). can one of the experts here confirm if the script is fine?

It is meant to backup the folder /opt and the sql data
i want to know how I can add multiple folders to the backup? Like /var, /opt, /etc ?

and I cant find any sql authentication details in the script. Is it able to backup the whole sql without requiring sql login?

i have no experience with shell, sorry.

Code:
#!/bin/sh

set -e
set -u

PATH='/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin'
export PATH

#
# Configuration:
#
source_dir='/opt' 
ftp_server='IP'
ftp_user='backup'
ftp_pass='pass'
gpg_pass='s3cret'

temp_dir="$(mktemp -d '/tmp/.daily-backup.XXXXXX')"
trap 'rm -rf "$temp_dir"' INT TERM EXIT
sql_file="$temp_dir/db.sql"
backup_file="$temp_dir/daily-$(date +'%F-%H-%M-%S').tar"

cd "$source_dir"
tar -cf "$backup_file" dailybackup*
cd "$OLDPWD"

mysqldump --quick --single-transaction --all-databases > "$sql_file"
tar -rf "$backup_file" -C "${sql_file%/*}" "${sql_file##*/}"

gpg --yes --batch --passphrase="$gpg_pass" -c $backup_file
rm -f "$backup_file"
backup_file="$backup_file.gpg"

#
# Remove the "-p" option if you don't want to use passive mode:
#
ftp -p -n <<-EOF
	open $ftp_server
	user $ftp_user $ftp_pass
	put $backup_file ${backup_file##*/}
	bye
EOF

 

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LEARN ABOUT CENTOS

amcryptsimple

AMCRYPTSIMPLE(8)					  System Administration Commands					  AMCRYPTSIMPLE(8)

NAME

       amcryptsimple - reference simple crypt program for Amanda symmetric data encryption

SYNOPSIS

       amcryptsimple  to be called by Amanda only

DESCRIPTION

       amcryptsimple calls gpg to perform symmetric data encryption on Amanda backup.  amcryptsimple will search for the gpg program in the
       following directories: /usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin

       amcryptsimple uses one passphrase to encrypt the Amanda data and uses the same passphrase to decrypt the Amanda backup data.  amcryptsimple
       uses AES256 as the symmetric cipher.

HOW TO CREATE PASSPHRASE

       Store the passphrase inside the home-directory of the Amanda user ($amanda_user) and protect it with proper permissions:

       echo my_secret_passphrase > ~$amanda_user/.am_passphrase
       chown $amanda_user:disk ~$amanda_user/.am_passphrase
       chmod 700 ~$amanda_user/.am_passphrase

NOTES

       Choose a good passphrase and protect it properly. Backup data can only be restored with the passphrase. There is no backdoor.

       If storing and securing passphrase in your environment presents challenges, Amanda provide public-key data encryption through amgpgcrypt.
       Public-key encryption uses the public key to encrypt and uses the private key to decrypt.

SEE ALSO

       amanda(8), amanda.conf(5), amcrypt(8), amgpgcrypt(8), amrestore(8), gpg(1)

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHOR

       Kevin Till <kevin.till@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

Amanda 3.3.3							    01/10/2013							  AMCRYPTSIMPLE(8)
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