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Full Discussion: Making a script to copy files not seen before (using md5sum)
Top Forums Shell Programming and Scripting Making a script to copy files not seen before (using md5sum) Post 302849075 by nbsparks on Friday 30th of August 2013 08:30:54 PM
Old 08-30-2013
OK. Here is a simpler view of directory (I hope) so all know what files are where:
Code:
nick@server ~$ cd ~
nick@server ~$ ls -R
.:
copy2.sh  test1  test1.md5  test2

./test1:
testfile1.jpg

./test2:
nick@server ~$ cd /hd1/home/nick
nick@server ~$ ls -R
.:
copy2.sh  test1  test1.md5  test2

./test1:
testfile1.jpg

./test2:

So you can see that my home directory is actually /hd1/home/nick
Inside my home folder there are two directories: test1, and test2
The "test1" folder has file in it.
The "test2" folder is empty.
I have a "test1.md5" file in my home directory that is empty (created with "touch test1.md5" command as one of my troubleshooting attempts).

And I made the modification (Adding set -x) to the copy2.sh
Code:
nick@server ~$ cat copy2.sh
#!/bin/bash
set -x

# The source directory where the photo folder on the phone is mirrored to
SRC=/hd1/home/nick/test1

# The destination directory where we want to copy only new photos we have copied before
DST=/hd1/home/nick/test2

# The MD5 list file that tracks which files we have copied before
MD5=/hd1/home/nick/test1.md5

# 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/*
do
  FMD5=md5sum $f
  grep -q $FMD5 $MD5
  if [[ $? -ne 0 ]]; then
    cp $SRC/$f $DST
    md5sum $f >> $MD5
  fi
done

And here is the new output.
Code:
nick@server ~$ ./copy2.sh
+ SRC=/hd1/home/nick/test1
+ DST=/hd1/home/nick/test2
+ MD5=/hd1/home/nick/test1.md5
+ for f in '$SRC/*'
+ FMD5=md5sum
+ /hd1/home/nick/test1/testfile1.jpg
./copy2.sh: line 17: /hd1/home/nick/test1/testfile1.jpg: Permission denied
+ grep -q /hd1/home/nick/test1.md5
^C
nick@server ~$

It stops there and I have to CTRL+C to stop it and get back to prompt.

Oh and the copy.sh vs copy2.sh issue, I don't know. Perhaps that was an errant keystroke on the delete key from me when typing up my post. Can't reproduce that.
 

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LEARN ABOUT CENTOS

fragiso

FRAGISO(8)						      System Manager's Manual							FRAGISO(8)

NAME

       fragiso - split rpm packages from an iso and reassemble the iso later on

SYNOPSIS

       fragiso make iso fiso
       fragiso list fiso
       fragiso fill [-m] fiso iso

DESCRIPTION

       fragiso	can  be  used  to convert an iso file into a fragment file, which is a list describing all of the rpms on the iso and a data chunk
       containing everything but the rpms. It is used by drpmsync when an iso needs to be transferred. The idea is that often the rpms on the  iso
       are already available on the destination host, so it saves bandwidth to first transfer the fragmented iso, copy the locally available rpms,
       transfer the unavailable rpms and reassemble the iso file.

       fragiso make converts the iso into the fragment iso, fragiso list can be used to extract the rpm information. This information consists	of
       the  offset  and  length  of all rpms and the lead/signature header md5sum plus the header/payload md5sum. To reassemble the iso one has to
       copy the rpms at the right offset into a new file and then use fragiso fill later on to provide all data not contained in the rpms. The	-m
       option tells fragiso to print the resulting md5sum of the iso to stdout.  It can be used for verification purposes.

SEE ALSO

       drpmsync(8)

AUTHOR

       Michael Schroeder <mls@suse.de>

								     Mar 2007								FRAGISO(8)
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