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Full Discussion: Store the name of an extracted file to a temp file
Top Forums Shell Programming and Scripting Store the name of an extracted file to a temp file Post 302868091 by jim mcnamara on Friday 25th of October 2013 08:18:07 PM
Old 10-25-2013
It depends on the command used to create the tar archive. If
Code:
tar tf tar_file.tar | grep filename

produces something like: ./filename or ./dir1/dir2/filename then if you use EXACTLY what tar tf showed, this will work - I picked one arbitrary name: ./filename
Code:
cd /tmp
tar xf /path/to/tar_file.tar  ./filename
mv ./filename  /path/to/tempfilename

if tar tf shows some name of the file without a leading dot ex: /path/filename
Then the /path directory has to be writable by your process. And /path/filename should not exist because tar will overwrite it.

then try:
Code:
tar xf /path/to/tar_file.tar /path/filename
mv /path/filename /path/to/tempfilename

This User Gave Thanks to jim mcnamara For This Post:
erin00
 

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LEARN ABOUT MINIX

sendfiles

SENDFILES(1)							     [nmh-1.5]							      SENDFILES(1)

NAME

       sendfiles - send multiple files via a MIME message

SYNOPSIS

       sendfiles [delay] mailpath subject file1 [file2 ...]

DESCRIPTION

       The shell script sendfiles, is used to send a collection of files and directories via electronic mail.

	    sendfiles mailpath "subject" files ...

       sendfiles will archive the files and directories you name with the tar command, and then mail the compressed archive to the "mailpath" with
       the given "subject".  The archive will be automatically split up into as many messages as necessary in order to get past most mailers.

       Sometimes you want sendfiles to pause after posting a partial message.  This is usually the case when you are running sendmail  and  expect
       to  generate  a lot of partial messages.  If the first argument given to sendfiles starts with a dash, then it is interpreted as the number
       of seconds to pause in between postings, e.g.,

	    sendfiles -30 mailpath "subject" files ...

       will pause 30 seconds in between each posting.

   Extracting the Received Files
       When these messages are received, invoke mhstore once for the list of messages.	The default is for mhstore to store the combined parts	as
       a  new  message	in the current folder, although this can be changed using storage formatting strings.  You can then use mhlist to find out
       what's inside; possibly followed by mhstore again to write the archive to a file where you can subsequently uncompress and untar  it.   For
       instance:

	    % mhlist 5-8
	     msg part  type/subtype		size description
	       5       message/partial		 47K part 1 of 4
	       6       message/partial		 47K part 2 of 4
	       7       message/partial		 47K part 3 of 4
	       8       message/partial		 18K part 4 of 4
	    % mhstore 5-8
	    reassembling partials 5,6,7,8 to folder inbox as message 9
	    % mhlist -verbose 9
	     msg part  type/subtype		size description
	       9       application/octet-stream 118K
			 (extract with uncompress | tar xvpf -)
			 type=tar
			 conversions=compress
	    % mhstore 9
	    % uncompress < 9.tar.Z | tar xvpf -

       Alternately, by using the -auto switch, mhstore will automatically do the extraction for you:

	    % mhlist 5-8
	     msg part  type/subtype		size description
	       5       message/partial		 47K part 1 of 4
	       6       message/partial		 47K part 2 of 4
	       7       message/partial		 47K part 3 of 4
	       8       message/partial		 18K part 4 of 4
	    % mhstore 5-8
	    reassembling partials 5,6,7,8 to folder inbox as message 9
	    % mhlist -verbose 9
	     msg part  type/subtype		size description
	       9       application/octet-stream 118K
			 (extract with uncompress | tar xvpf -)
			 type=tar
			 conversions=compress
	    % mhstore -auto 9
	    -- tar listing appears here as files are extracted

       As the second tar listing is generated, the files are extracted.  A prudent user will never put -auto in the .mh_profile file.  The correct
       procedure is to first use mhlist to find out what will be extracted.  Then mhstore can be invoked with -auto to perform the extraction.

FILES

       $HOME/.mh_profile	  The user profile

PROFILE COMPONENTS

       Path:		    To determine the user's nmh directory
       Current-Folder:	    To find the default current folder

SEE ALSO

       mhbuild(1), mhlist(1), mhshow(1), mhstore(1).  Proposed Standard for Message Encapsulation (RFC-934)

DEFAULTS

       `-noverbose'

CONTEXT

       None

MH.6.8								   11 June 2012 						      SENDFILES(1)
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