Linux 纯shell备份文件

• 克隆项目并进入项目目录：git clone https://github.91chi.fun/https://github.com/Pricetx/backup.git;cd backup

• 创建所需目录：mkdir -p /root/backups/temp/

• 添加脚本可执行权限：chmod +x backup.sh

• 编辑配置文件backup.cfg,注释写的很清楚，要配置的也不多，注意：最好给该配置文件配置权限为044，因为里面存放了加密密码

  ### BACKUP CONFIGURATION ###
  
  # KEEP THE PASSWORD SAFE. It is HIGHLY recommended to chmod 400 this file so 
  # that other users can not read it
  
  # To decrypt backups made by this script, run the following command:
  # openssl enc -aes256 -in [encrypted backup] -out decrypted_backup.tgz -pass pass:[backup password] -d -md sha1
  #解密命令：openssl enc -aes256 -in 加密文件名.tgz.enc -out decrypted_backup.tgz -pass pass:解密密码 -d -md sha1
  
  ## Edit the entries below to match your needs ##
  
  # The password used to encrypt the backup
  # NOTE: MAKE SURE THAT YOU CHMOD THIS FILE TO 400 TO AVOID UNAUTHORISED ACCESS
  BACKUPPASS="mysecurepassword"
  
  # Directory to store backups
  #存放本机本分文件路径
  LOCALDIR="/root/backups/"
  
  # Temporary directory used during backup creation
  TEMPDIR="/root/backups/temp/"
  
  # File to log the outcome of backups
  LOGFILE="/root/backups/backup.log"
  
  # Number of days to store daily local backups
  LOCALAGEDAILIES="7"
  
  # Number of days to store daily remote backups
  REMOTEAGEDAILIES="7"
  
  # Number of days to store weekly local backups
  LOCALAGEWEEKLIES="28"
  
  # Number of days to store weekly remote backups
  REMOTEAGEWEEKLIES="28"
  
  # Number of days to store monthly local backups
  LOCALAGEMONTHLIES="183"
  
  # Number of days to store monthly remote backups
  REMOTEAGEMONTHLIES="183"
  
  # IP / hostname of the server to store remote backups
  #远程主机IP，即你要把备份文件传到哪台服务器上
  REMOTESERVER="REMOTE_SERVER_HERE"
  
  # SSH port of remote server
  REMOTEPORT=22
  
  # User to use with SSH (public key needs to be installed on the remote server)
  #远程主机用户名（该配置文件中没有配置密码，是因为通过公钥连接的，可以使用ssh-copy-id 用户名@主机名，将公钥放在远程主机上）
  REMOTEUSER="REMOTE_USER_HERE"
  
  # Path to store the remote backups
  #远程主机存放备份文件路径，注意要保证路径存在，且权限正确
  REMOTEDIR="/BACKUP/PATH/ON/REMOTE/SYSTEM/"
  
  # Limit bandwidth used by SCP, in Kbit/s. Set to 0 for unlimited.
  SCPLIMIT=0
  
  # OPTIONAL: If you want MySQL to be backed up, enter the root password below
  #如果要备份数据库的话，填写mysql数据库密码
  ROOTMYSQL=""
  
  # Below is a list of files and directories that will be backed up in the tar
  # backup. To add an entry, add a new line with the same format
  #需要备份的文件路径
  BACKUP+=("/root/backup.cfg")
  BACKUP+=("/etc/")
  
  # Files and directories to exclude from tar backups
  # To add an entry, add a new line with the same format
  # NOTE: DO NOT LEAVE A TRAILING SLASH ON LINUX - IT WILL CAUSE IT TO NOT WORK
  #需要排除的文件路径
  EXCLUDE+=("")
  
  # Below is a list of files and directories that will be backed up in the rsync
  # backup. To add an entry, add a new line with the same format
  # NOTE: DO NOT LEAVE A TRAILING SLASH - IT WILL CAUSE IT TO NOT WORK
  RSYNCDIR+=("")
  

原文地址：http://www.cnblogs.com/steinven/p/16824167.html