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¡¡¡¡Ubuntuϵͳ£ºsudo apt-get install rsync
¡¡¡¡Fedora ϵͳ£ºsudo yum install rsync
¡¡¡¡2. rsyncÌṩÁËһЩ¸úɾ³ýÓйصIJÎÊý
¡¡¡¡rsync --help | grep delete
¡¡¡¡--del an alias for --delete-during
¡¡¡¡--delete delete extraneous files from destination dirs
¡¡¡¡--delete-before receiver deletes before transfer£¬ not during
¡¡¡¡--delete-during receiver deletes during transfer (default)
¡¡¡¡--delete-delay find deletions during£¬ delete after
¡¡¡¡--delete-after receiver deletes after transfer£¬ not during
¡¡¡¡--delete-excluded xpϵͳ´¿¾»°æ2014 also delete excluded files from destination dirs
¡¡¡¡--ignore-errors delete even if there are I/O errors
¡¡¡¡--max-delete=NUM don‘t delete more than NUM files
¡¡¡¡ÆäÖÐ--delete-before½ÓÊÕÕßÔÚ´«Êä֮ǰ½øÐÐɾ³ý²Ù×÷
¡¡¡¡3. ʾÀý
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¡¡¡¡mkdir /data/blank
¡¡¡¡¶þ¡¢ÓÃrsyncɾ³ýÄ¿±êĿ¼
¡¡¡¡rsync --delete-before -d -a -H -v --progress --stats /data/blank/ /var/edatacache/
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¡¡¡¡rsync --delete-before -d /data/blank/ /var/edatacache/
¡¡¡¡ÕâÑù/var/edatacacheĿ¼¾Í±»¿ìËÙµÄÇå¿ÕÁË
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