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

NAME
wdmd - watchdog multiplexing daemon SYNOPSIS
wdmd [OPTIONS] DESCRIPTION
This daemon opens /dev/watchdog and allows multiple independent sources to detmermine whether each KEEPALIVE is done. Every test interval (10 seconds), the daemon tests each source. If any test fails, the KEEPALIVE is not done. In a standard configuration, the watchdog timer will reset the system if no KEEPALIVE is done for 60 seconds ("fire timeout"). This means that if single test fails 5-6 times in row, the watchdog will fire and reset the system. With multiple test sources, fewer separate failures back to back can also cause a reset, e.g. T seconds, P pass, F fail T00: test1 P, test2 P, test3 P: KEEPALIVE done T10: test1 F, test2 F, test3 P: KEEPALIVE skipped T20: test1 F, test2 P, test3 P: KEEPALIVE skipped T30: test1 P, test2 F, test3 P: KEEPALIVE skipped T40: test1 P, test2 P, test3 F: KEEPALIVE skipped T50: test1 F, test2 F, test3 P: KEEPALIVE skipped T60: test1 P, test2 F, test3 P: KEEPALIVE skipped T60: watchdog fires, system resets (Depending on timings, the system may be reset sometime shortly before T60, and the tests at T60 would not be run.) A crucial aspect to the design and function of wdmd is that if any single source does not pass tests for the fire timeout, the watchdog is guaranteed to fire, regardless of whether other sources on the system have passed or failed. A spurious reset due to the combined effects of multiple failing tests as shown above, is an accepted side effect. wdmd will exit if a watchdog driver is not loaded. wdmd cannot be used on the system with any other program that needs to open /dev/watchdog, e.g. watchdog(8). Test Source: clients Using libwdmd, programs connect to wdmd via a unix socket, and send regular messages to wdmd to update an expiry time for their connection. Every test interval, wdmd will check if the expiry time for a connection has been reached. If so, the test for that client fails. (Other test sources such as scripts executed each test interval may be added in the future.) OPTIONS
-D Enable debugging to stderr and don't fork. -H num Enable (1) or disable (0) high priority features such as realtime scheduling priority and mlockall. Default 1. 2011-08-01 WDMD(8)

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