SYNC between Two directories

I want to sync files and directores between two directories  even sub directories under   below that directories wtih shell scripts.


both test2 must sync with test1 with shell script and i wat to schdule shell script under cron job every mid night

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You will want to look at the command rsync.  

without testing.   this is something of what it'll look like.

rsync avr --delete /mnt/source /mnt/destination

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You don't need a script, just define a cronjob as

0 0 * * * rsync -a --delete /mnt/test1 /mnt/test2
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if you don't have rsync installed, you can obtain it hetr
vadicherlaAuthor Commented:
Does rsync also verify the time stamp on file. If we have same file on both directories . i still need to copy the file from A to B because it modified

Thats one of the most important features of rsync
As well as you can set it to check checksums on the file.  So if for some reason you are not keeping Atime and Mtime on the filesystem rsync will still keep the files in sync.
Oh yeah!  it's also a great tool for remotely keeping files in sync..   so you have have an off machine backup.
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