Shell scripts for full backup data and differential backup data

#!/bin/bash ## description:  the script function, cycle in weeks; Friday full backup, Saturday No backup, Sunday to Thursday differential backup;#                due to work needs, do not implement compression packaging method, using CP full backup, rsync differential backup;#                to use this script, Please modify the following two parameters directly: Backuppath and DataPath, other places please do not modify; # date: 2017-04-24 22:43:00# modify date:  2017-04-28 10:00:00  #     VERSION: 1.1#       Author: xixi_chan#  Import PATH environment variable export path=/usr/local/sbin:/usr/local/bin:/usr/ sbin:/usr/bin:/root/bin:/bin:/sbin:/root/bin#  redefine IFS variables to avoid ifs= ' echo -en  ' \n\b ' ' When a space exists in the directory or file name   Define global variables backuppath=/mnt/backup_data/#  Specify the backup path  DATAPath=/data/ac-cnc/  #  directory to be backed up   time= ' date +%y-%m-%d ' #  defines today's time variable host= ' echo  $HOSTNAME  | awk -f '.   ' {print $1} ' #  define hostname logfile=/var/Log/${host}/${host}_${time}.log "  #  definition log file name logdir= ' echo " $LogFile " | sed - r  ' [email protected][^/]+/[email protected]@g ' #  define the directory where the log files are located dirfile= ' ls  $DATAPath ' #   Save the files and directories under the backup path to the variable dirfile firstfile= "${backuppath}${host}_${time}/' Basename ${datapath} '/"    #  defines the current backup directory based on Time oldfirstfile= "${backuppath}${host}_$ (date +%y-%m-%d --date= ' 7 days  ago ') "#  definition 7 days ago Backup directory #  log file start part head ()  {[ ! -d  $LogDir  ] & & mkdir  $LogDirecho   "---------------------the backup starts---------------------- " >  $LogFile  echo  >>  $LogFile  2>&1echo " start  backup  $DATAPath  $ (date + "%y-%m-%d %h:%m:%s") "  >>  $LogFile  2 >&1 echo  >>  $LogFile  2>&1echo ---------------------the  backup starts----------------------"  >>  $LogFile  2>&1 echo  >> $ logfile 2>&1echo  >>  $LogFile  2>&1}#  Full backup fullbackup () {echo   "today is week:  ' date +%a ',  start performing a full backups ... "echo  >>  $LogFile  2>&1echo  >>  $LogFile  2> &1if [ -d  $OldFirstFile  ];then     rm -rf $ oldfirstfile  >>  $LogFile  2>&1      echo  " [  $OldFirstFile  ] delete old file success! ' Date ' "  >> $ logfile 2>&1[ ! -d  $FirstFile  ] && mkdir -pv $ firstfile   >>  $LogFile  2>&1cd  $DATAPathfor  File in  $DirFile;  docp -a ${file}   $FirstFile   >>  $LogFile  2>&1if [ $? -eq 0  ];thenecho  "[ ${datapath}${file} ] backup success! ' Date '"   >>   $LogFile  2>&1 fidoneelseif [ ! -d  $FirstFile  ];thenmkdir  -pv  $FirstFile   >>  $LogFile  2>&1 cd  $DATAPathfor  file  in  $DirFile; docp -a ${file}   $FirstFile   >>  $LogFile  2>&1 if [ $? -eq 0 ];thenecho  "[ ${datapath}${file}  ] backup success! ' Date '   >>  $LogFile  2>&1 fidoneelseecho   "[  $DATAPath  ]the backup file is exists,can ' t backup! ' date '    >>  $LogFile  2>&1 fifi   }#  Differential backup diffbackup ()  {echo   "today is week:  ' date +%a ',  start performing differential backups ... "echo  > >  $LogFile  2>&1echo  >>  $LogFile  2>&1if [ -d   $OldFirstFile  ];then        rm -rf  $OldFirstFile   >>  $LogFile  2>&1        echo  " [  $OldFirstFile  ] Delete Old File Success!          ' Date '   >>  $LogFile  2>&1         [ ! -d  $FirstFile  ] && mkdir -pv  $FirstFile     >>  $LogFile  2>&1        rsync  --dry-run -racnc --out-format= "%n"    $DATAPath   $d _dir | grep -v  "/ $ "&NBSP;|&NBSP;XARGS&Nbsp;-i{} rsync -r -a -z ${datapath}/./{}  $FirstFileif  [ $? -eq  0 ];thenecho  "[ ${datapath}${file} ] backup success! ' Date '"    >>  $LogFile  2>&1 fielse        if [  ! -d  $FirstFile  ];then                mkdir -pv  $FirstFile   >>  $LogFile  2>&1                rsync --dry-run  -racnc --out-format= "%n"    $DATAPath   $d _dir | grep -v  "/$"  |  xargs -I{} rsync -R -a -z ${DATAPath}/./{}  $FirstFile          if [ $? -eq 0 ];then        echo  "[&NBsp;${datapath}${file} ] backup success! ' Date '   >>  $LogFile  2> &1         fi         else                echo  "[ ${datapath} ]the backup file is exists,can ' t backup!        ' Date '   >>  $LogFile  2>&1         fifi}#  End of Journal end () {echo  >>  $LogFile  2>&1echo   >>  $LogFile  2>&1echo  "---------------------the backup ends -- --------------------"  >>  $LogFile  2>&1 echo  >> $ logfile 2>&1echo  "  $DATAPath  backup ends             $ (date + "%y-%m-%d %h:%m:%s") "  >>  $LogFile  2>&1echo   >>  $LogFile  2>&1echo  "---------------------the backup ends  ----------------------"  >>  $LogFile  2>&1 }a= ' date +%u ' #   Definition today is the day of the week b=7 #  defines how many days a full backup and differential backup is defined, here is defined as a 7-point loop once, if you want to increase the number of cycles, modify here c=5#  5 represents a full backup of Friday, If you want to change to a full backup in Saturday, modify the 6d=6#  to define 6 of the weekly data ago=$[  $a  +  $b  -$c  ]#  define how many days away from $c d_dir=$ {backuppath}${host}_$ (date +%y-%m-%d -d  "' echo  $ago '  days ago")/' basename $ {DATAPath} '/#date  +%Y-%m-%d -d  ' echo  $ago '  days ago '  #  define a backup strategy if  [  "$a"  -eq  "$c"  ]; thenHeadFullBackupendelif [  "$a"  -eq  "$d"  ]; thenHeadecho  "today is saturday 6, according to the  Backup strategy, today nO data backup. "  >>  $LogFile  2>&1endelseHeadDiffBackupendfi#  Send mail to designated email after backup mail_group= "[email  protected] [email protected] "mail -s  " from  $Host  backup  Information "  $Mail _group <  $LogFileexit  0

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Shell scripts for full backup data and differential backup data