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Full Discussion: How do you compare two folders and copy the difference to a third folder in a remote server?
Top Forums Shell Programming and Scripting How do you compare two folders and copy the difference to a third folder in a remote server? Post 302982351 by rovf on Wednesday 28th of September 2016 09:38:48 AM
Old 09-28-2016
Quote:
Originally Posted by cumeh1624
I know how to use rsync to sync up remote destination folder but my requirement is to compare files in local directory to files in remote directory and copy the difference to another directory in same remote server named difference.
You mean: You have a local directory A, and remote directories B and C, and want to copy those files in A to be copied to C, which are different from B? Sorry to misunderstand you.

In this case you indeed need to rule out your own algorithm, but unless I overlook something, you haven't answered yet my earlier question, how you exactly define "difference". Content? Last modification time?

You still can use rsync for getting the difference. Please look at the --dry-run switch of rsync. The idea is to first do a dry run of rsync of A vs. B, collect from it the names of the files which would be copied, and then use this list to actually copy the files to B, using for instance scp or rcp.
 

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LEARN ABOUT ULTRIX

mhpath

mhpath(1mh)															       mhpath(1mh)

Name
       mhpath - print full pathnames of MH messages and folders

Syntax
       mhpath [ +foldername ] [ msgs ] [ -help ]

Description
       Use the command to display the full pathname of the specified folder.  If you do not specify a folder, displays the pathname of the current
       folder.

       If you specify a message with its message number, displays the pathname of the specified message.  You can also specify a  number  of  mes-
       sages,  or  a range of messages.  If the top of the range that you specify is greater than the last message in the folder, displays as much
       of the specified range as possible.

       Additionally can take a keyword or a sequence name.  The following keywords are acceptable:

       first	 The first message in the folder.

       last	 The last message in the folder.

       new	 The message after the last message in the folder.  You cannot use new as part of a message range.

       cur	 The current message in the folder.

       prev	 The message before the current message.

       next	 The message after the current message.

       all	 All of the messages in the folder.

Options
       -help	 Prints a list of the valid options to this command.

Examples
       In the following example, displays message 3 in the folder
       % mhpath +inbox 3
       /r/phyl/Mail/inbox

       The following example displays the pathname of messages 2 to 5 in the current folder:
       % mhpath 2-5
       /r/phyl/Mail/inbox/2
       /r/phyl/Mail/inbox/3
       /r/phyl/Mail/inbox/4
       /r/phyl/Mail/inbox/5

Profile Components
       Path:   To determine your Mail directory

Files
       The user profile.

See Also
       folder(1mh)

																       mhpath(1mh)
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