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Top Forums Shell Programming and Scripting Move folder once it is "ready" Post 302903066 by alister on Friday 23rd of May 2014 08:20:45 PM
Old 05-23-2014
Polling the folder and hoping that everything is done is asking for trouble. If you actually care about not copying over a half-written file, you need an atomic step.

First of all, the directory that you monitor and the directory which is the landing place for the transfers should not be the same. Secondly, they should lie on the same filesystem. Thridly, when a file arrives on the monitored directory (given the conditions above, it would be a POSIX atomic rename(2) operation), that file is always complete and any counts can be considred completed.

Regards,
Alister
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packf(1mh)																packf(1mh)

Name
       packf - compress a folder into a single file

Syntax
       packf [ +folder ] [ msgs ] [ -file name ] [ -help ]

Description
       Each  message in a folder is normally stored as a separate file.  The command takes all messages from the current folder and copies them to
       a single specified file.  Each message in the file is separated by four <CTRL/A>s and a newline.

       You can specify a folder other than the current folder by using the +folder argument.  If you do not want all the messages in a	folder	to
       be packed into one file, you can specify a number of messages or a range of messages with message numbers.

       The first message packed will become the current message.  If you specify a +folder argument, that folder will become the current folder.

       When messages have been packed into a file using you can separate them into individual messages using the command.  See

Options
       -file name
		 Specifies  the  file  in which you want the message(s) to be stored.  If you specify an existing file then the specified messages
		 will be appended to the end of that file.  Otherwise, a new file will be created and the messages placed in it.  If  you  do  not
		 specify  a  filename,	attempts  to  place the messages in a file called in the current working directory.  If this file does not
		 exist, asks whether you want to create it.

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

       The default settings for this command are:

	      +folder defaults to the current folder
	      msgs defaults to all
	      -file ./msgbox

Examples
       The first example shows all the messages in the folder being packed into a file called
       % packf +lrp -file planning

       The next example shows how prompts you if you do not specify a -file option.  A file called is created by in your home directory, and  mes-
       sages 3 to 5 are packed into it:
       % packf +lrp 3-5
       Create file "/machine/disk/username/msgbox"? y

Profile Components
       Path:	      To determine the user's Mail directory
       Msg-Protect:   To set protections when creating a new file

Files
       $HOME/.mh_profile   The user profile.

See Also
       burst(1mh)

																	packf(1mh)
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