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Need to create a simple script using MD5, SSH...

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Top Forums Shell Programming and Scripting Need to create a simple script using MD5, SSH...
# 8  
Old 03-04-2011
If you'd tried it you'd see in an instant what it does. basename /path/to/file prints file. similarly, dirname /path/to/file prints /path/to.
This User Gave Thanks to Corona688 For This Post:
zixzix01
# 9  
Old 03-04-2011
Thanks for that, and yet still I have questions, I apologize.

I think originally he had /usr/bin declared...I'm getting errors about "md5" function!

Here is what I have so far!
Code:
hosts=`cat /home/izivanov/iz_hosts`     #where iz_hosts is a txt file list of all hosts/servers
for fname in /home/izivanov/iz2    #where iz2 is a file with all the files with pathnames
do
        hash=$(md5 $fname | awk '{print $4}' )
        bname=$(basename $fname)
        for box in ${hosts}
        do
                t=$(ssh ${box} "md5 fname /opt/dba/scp/$bname")
                test_hash=$(echo "$t" | awk '{print $4}')
                if [ "hash" != "$test_hash"] ; then
                echo Files Are Not Identical
                fi
        done
done

And this is what I get in return:

:/home/izivanov# sh dirsync.sh
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.
sh: md5: not found.
dirsync.sh[10]: test: Specify a parameter with this command.

I think its not recognising my md5 command. BTW I am working in SecureCRT connecting to HP-UX servers. If I didn't already mention that!
# 10  
Old 03-04-2011
You get several useless use of cat awards. Smilie It's a very bad programming habit...

Your second try, 'for fname in /home/izivanov/iz2' is even weirder, since for doesn't read files.

Both should be done as while read X ; do stuff ; done < filename

Code:
while read fname
do
        hash=$(/usr/bin/md5 "${fname}" | awk '{print $4}' )
        bname=$(basename $fname)

        while read box
        do
                # what is 'md5 fname' supposed to do?  is there really a file named 'fname' over there?
#                t=$(ssh ${box} "/usr/bin/md5 fname /opt/dba/scp/$bname"| awk '{print $4}')
                t=$(ssh ${box} "/usr/bin/md5 /opt/dba/scp/$bname"| awk '{print $4 }')
                [ "${hash}" = "${t}" ] || echo Files Are Not Identical

        done < /home/izivanov/iz_hosts
done < /home/izivanov/iz2

Depending on your shell there may be more efficient ways to get the fourth parameter than awk '{print $4}' but we don't know what your shell is yet.
# 11  
Old 03-04-2011
Data
Thank you. I'm Smilie, hence the very bad programming mistakes. I never programmed in my life. But now have to learn it!

fname is supposed to be a file name which is taken out of the file iz2 (the one in /home/izivanov/iz2)
The file just lists the 5 files to be changed with their path names like so:

HTML Code:
/opt/dba/scp/so-and-so
/opt/dba/scp/so-and-so2
/opt/dba/scp/so-and-so3
etc.
---------- Post updated at 05:13 PM ---------- Previous update was at 04:47 PM ----------

After putting this in my script i still get the same errors about MD5. Don't know what ails it!

My shell is:
:/home/izivanov# echo $SHELL
/sbin/sh

Don't know if that helps!

Here is the script:

Code:
(root):/home/izivanov# vi dirsync.sh
"dirsync.sh" 12 lines, 312 characters 
while read fname
do
   hash=$(/usr/bin/md5 ${fname} | awk '{print $4}' )
   bname=$(basename $fname)

   while read box
   do
      t=$(ssh ${box} "/usr/bin/md5 /opt/dba/scp/$bname" | awk '{print $4}')
      [ "${hash}" = "${t}" ] || echo Files are not Identical!!!

   done < /home/izivanov/iz_hosts
done < /home/izivanov/iz2

Here is the output!

(root):/home/izivanov# sh dirsync.sh
dirsync.sh[3]: /usr/bin/md5: not found.
sh: /usr/bin/md5: not found.
dirsync.sh[3]: /usr/bin/md5: not found.
sh: /usr/bin/md5: not found.
dirsync.sh[3]: /usr/bin/md5: not found.
sh: /usr/bin/md5: not found.
dirsync.sh[3]: /usr/bin/md5: not found.
sh: /usr/bin/md5: not found.
rtidsva(root):/home/izivanov#
Smilie
# 12  
Old 03-04-2011
You need to find out where, and perhaps even if, md5 is installed on these machines.

It also goes by md5sum on some systems.
Last edited by Corona688; 03-04-2011 at 06:17 PM.. Reason: bname totally exists, my bad
# 13  
Old 03-04-2011
Definitely installed cause:

(root):/home/izivanov# md5 iz2
MD5 (iz2) = f209726125bdf61f49c1adf3596fb5b6

---------- Post updated at 05:20 PM ---------- Previous update was at 05:19 PM ----------

Also :

(root):/home/izivanov# which md5
/usr/local/bin/md5
# 14  
Old 03-04-2011
/usr/local/bin/ is a weird place for it to be. That's not usually in your PATH, either. It might have been custom-built and installed on just that server... You'd better make sure all the servers in question actually have it.

If they do, there you go, /usr/local/bin/md5.

If they don't, hmm.... how big are these files you're checking?
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