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Top Forums Shell Programming and Scripting Making a script to copy files not seen before (using md5sum) Post 302848957 by nbsparks on Friday 30th of August 2013 01:34:46 PM
Old 08-30-2013
Thank you for suggestions. But rsync is not my solution. I want to be able to delete all the files in the $DST folder but yet not have files copy over again, even if the $DST is empty and the $SRC is full. Bottom line, if the files that are "currently" in $SRC have already been copied once over to $DST, then the don't copy again (unless I intentionally restart be deleting the MD5 list).

I was ponder this code last night too and I realized that it's just parsing a filename in an MD5 list. It's almost like I need to do something like this...



for f in $SRC/*
  FMD5=md5sum $f
  grep -q $FMD5 $MD5
  if [[ $? -ne 0 ]]; then
    cp $SRC/$f $DST
    md5sum $f >> $MD5

Unfortunately, I'm not where I can test this right now, but does that seem like it would work?

---------- Post updated at 10:34 AM ---------- Previous update was at 09:39 AM ----------

OK... I had a moment to test a script and this is what happened.

Here are the two directories I'm working with as a sample:
nick@server ~$ ls t* -a -l
total 12
drwxr-xr-x 2 nick nick 4096 Aug 30 10:12 .
drwxr-xr-x 7 nick nick 4096 Aug 30 10:20 ..
-rw-r--r-- 1 nick nick   51 Aug 30 10:28 testfile1.jpg

total 8
drwxr-xr-x 2 nick nick 4096 Aug 30 10:09 .
drwxr-xr-x 7 nick nick 4096 Aug 30 10:20 ..

Here is my code:

# The source directory where the photo folder on the phone is mirrored to

# The destination directory where we want to copy only new photos we have copied before

# The MD5 list file that tracks which files we have copied before

# Check files against the MD5 list and then copy if not previously copied
# Then add the md5 for that file to the MD5 list
for f in $SRC/*
  FMD5=md5sum $f
  grep -q $FMD5 $MD5
  if [[ $? -ne 0 ]]; then
    cp $SRC/$f $DST
    md5sum $f >> $MD5

Here is the output:
nick@server ~$ ./
./ line 16: test1/testfile1.jpg: Permission denied

Anyone tell me where I went wrong?
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gst-md5sum-0.8(1)						   User Commands						 gst-md5sum-0.8(1)

gst-md5sum-0.8, gst-md5sum - get an md5sum of a GStreamer pipeline through md5sink SYNOPSIS
gst-md5sum-0.8 [--verbose] [gst-std-options] [partial-pipeline-description] gst-md5sum [--verbose] [gst-std-options] [partial-pipeline-description] [--gst-list-mm] [--gst-mm=string] [--print] DESCRIPTION
gst-md5sum-0.8 generates MD5 checksums of the data generated by a GStreamer pipeline. In theory, both of the following commands should print out the same checksum: gst-md5sum-0.8 filesrc location=music.mp3 md5sum music.mp3 If the pipeline contains an md5sink element, gst-md5sum-0.8 queries it for the md5sum at the end of pipeline iteration. If the pipeline does not contain an md5sink element, gst-md5sum-0.8 automatically connects an md5sink to the right-hand side of the given pipeline. See gst-launch(1) or the GStreamer documentation for more information on how to create a partial-pipeline-description. gst-md5sum is a wrapper script that runs the latest installed version of gst-md5sum-X.X. For example, if both gst-md5sum-0.7 and gst- md5sum-0.8 are installed on your system, gst-md5sum runs gst-md5sum-0.8. OPTIONS
The following options are supported by gst-md5sum-0.8 and gst-md5sum: --verbose Output verbose information. You can also use -v to specify this option. gst-std-options Standard options available for use with most GStreamer applications. See gst-std-options(5) for more information. The following options are supported by gst-md5sum only: --gst-list-mm List found major/minor versions. This option displays the versions that are available. --gst-mm=string Force major/minor version. This option enables you to specify a specific version to run, if you do not want to run the default version. --print Print wrapped command line. This option displays the command that will be run, and then runs the command. OPERANDS
The following operands are supported: partial-pipelinePartialppipeline description. EXAMPLES
Example 1: Running the Wrapper Script and Displaying the Command Name example% gst-md5sum --print /usr/bin/gst-md5sum-0.8 FILES
The following files are used by this application: /usr/bin/gst-md5sum-0.8 Executable for GNOME help browser /usr/bin/gst-md5sum Wrapper script that runs the latest installed version of gst-md5sum-X.X ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgnome-media | +-----------------------------+-----------------------------+ |Interface stability |External | +-----------------------------+-----------------------------+ SEE ALSO
gst-complete(1), gst-compprep(1), gst-feedback(1), gst-inspect(1), gst-launch(1), gst-launch-ext(1), gst-register(1), gst-thumbnail(1), gst-typefind(1), gst-xmlinspect(1), gst-xmllaunch(1), gstreamer-properties(1), libgstreamer-0.8(3), libgstgetbits(3), gst-std-options(5) NOTES
Original man page written by the GStreamer team at Updated by Brian Cameron, Sun Microsystems Inc., 2004. SunOS 5.10 14 Oct 2004 gst-md5sum-0.8(1)

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