我要评论auto_backup_system.sh
#针对目录进行备份；每周1-6执行增量备份，每周日(值为：0 or 7)执行全备份
#!/bin/bash
#automatic backup linux system files
#by author xiaoheiyaoshangtian
#2024/x/x
source_dir=($*)
target_dir=/tmp
year=$(date +%y)
month=$(date +%m)
day=$(date +%d)
week=$(date +%u)
files=system_backup.tar.gz
code=$?
if [ -z $source_dir ];then
echo -e "please enter file or directory you need to backup:\n--------------------------------------------------\nexample $0 /boot /etc ......"
exit
fi
#determin whether the target directory exists
if [ ! -d $target_dir/$year/$month/$day ];then
mkdir -p $target_dir/$year/$month/$day
echo "this $target_dir/$year/$month/$day created successfully!"
fi
#exec full backup function command
full_backup()
{
if [ "$week" -eq "0" ];then
rm -rf $target_dir/snapshot
cd $target_dir/$year/$month/$day
tar -g $target_dir/snapshot -czvpf $files $(echo ${source_dir[@]})
[ "$code" == "0" ]&&echo -e "---------------------------------------\nfull_backup system files backup successfully!"
fi
}
#perform incremental backup function command
add_backup()
{
cd $target_dir/$year/$month/$day
if [ -f $target_dir/$year/$month/$day/$files ];then
read -p "$files already exists,overwrite confirmation yes or no(default yes)?:" sure
if [ "$sure" == "no" -o "$sure" == "n" -o "$sure" == "n" -o "$sure" == "no" -o "$sure" == "no" ];then
sleep 1
exit 0
fi
if [ $week -ne "0" ];then
cd $target_dir/$year/$month/$day
tar -g $target_dir/snapshot -czvpf $$_$files $(echo ${source_dir[@]})
[ "$code" == "0" ]&&echo -e "---------------------------------------\nadd_backup system files backup successfully!"
fi
else
if [ $week -ne "0" ];then
cd $target_dir/$year/$month/$day
tar -g $target_dir/snapshot -czvpf $files $(echo ${source_dir[@]})
[ "$code" == "0" ]&&echo -e "---------------------------------------\nadd_backup system files backup successfully!"
fi
fi
}
full_backup
add_backup
验证：
[root@logstash ~]# sh auto_backup_system.sh please enter file or directory you need to backup: -------------------------------------------------- example auto_backup_system.sh /boot /etc ...... [root@logstash ~]# [root@logstash ~]# sh auto_backup_system.sh /tmp this /tmp/2024/06/21 created successfully! tar: /tmp: directory is new tar: /tmp/.ice-unix: directory is new tar: /tmp/.test-unix: directory is new tar: /tmp/.x11-unix: directory is new tar: /tmp/.xim-unix: directory is new tar: /tmp/.font-unix: directory is new tar: /tmp/2024: directory is new tar: /tmp/2024/06: directory is new tar: /tmp/2024/06/21: directory is new /tmp/ /tmp/.ice-unix/ /tmp/.test-unix/ /tmp/.x11-unix/ /tmp/.xim-unix/ /tmp/.font-unix/ /tmp/2024/ /tmp/2024/06/ /tmp/2024/06/21/ /tmp/snapshot /tmp/2024/06/21/system_backup.tar.gz --------------------------------------- add_backup system files backup successfully! [root@logstash ~]# [root@logstash ~]# sh auto_backup_system.sh /tmp system_backup.tar.gz already exists,overwrite confirmation yes or no(default yes)?:no [root@logstash ~]# [root@logstash ~]# sh auto_backup_system.sh /tmp system_backup.tar.gz already exists,overwrite confirmation yes or no(default yes)?: /tmp/ /tmp/.ice-unix/ /tmp/.test-unix/ /tmp/.x11-unix/ /tmp/.xim-unix/ /tmp/.font-unix/ /tmp/2024/ /tmp/2024/06/ /tmp/2024/06/21/ /tmp/2024/06/21/2577_system_backup.tar.gz --------------------------------------- add_backup system files backup successfully! [root@logstash ~]#
[root@logstash tmp]# ls 2024 snapshot [root@logstash tmp]# [root@logstash tmp]# cd 2024/ [root@logstash 2024]# cd 06/21/ [root@logstash 21]# ls 2577_system_backup.tar.gz system_backup.tar.gz [root@logstash 21]#
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