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Copy multiple files from A to B through passwordless ssh

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Top Forums Shell Programming and Scripting Copy multiple files from A to B through passwordless ssh
# 1  
Old 01-22-2013
RedHat Copy multiple files from A to B through passwordless ssh
hi all,

I need to write one script to copy multiple imp files
like
/etc/passwd
/etc/group
/etc/shadow
/etc/printers.conf
from system A, System B and system C to system Z
and I need to execute this script on System Z.
like if system is equal A copy 1 2 3 files to system Z into /A-files
if system is equal B copy 4 5 6 files to system z into /B-files
I have set password less ssh from and to A,B,C to Z and vice versa.

Could you please guide me as how to go about this..?

Thanks in Advance.
Manali.
# 2  
Old 01-22-2013
You can fetch your system name using hostname -s then just use scp to copy the files you want eg:


Code:
case $(hostname -s) in
    systemA)
        scp -p /etc/passwd systemz:/usr/local/backup/A-Files/
        scp -p /etc/group systemz:/usr/local/backup/A-Files/
    ;;
    systemB)
        scp -p /etc/passwd systemz:/usr/local/backup/B-Files/
        scp -p /etc/group systemz:/usr/local/backup/B-Files/
    ;;
esac

Last edited by Chubler_XL; 01-22-2013 at 05:13 PM.. Reason: Formatting - Added -p scp option to preserve modes
# 3  
Old 01-23-2013
Is this code right syntax?
Thanks
# 4  
Old 01-23-2013
This should syntax should be OK for most recent shell versions, if you're having issues try using backticks instead of the $( command ) eg:

Code:
case `hostname -s` in
    systemA)
        scp -p /etc/passwd systemz:/usr/local/backup/A-Files/
        scp -p /etc/group systemz:/usr/local/backup/A-Files/
    ;;
    systemB)
        scp -p /etc/passwd systemz:/usr/local/backup/B-Files/
        scp -p /etc/group systemz:/usr/local/backup/B-Files/
    ;;
esac

# 5  
Old 01-23-2013
Hi Chubler_XL,

Thanks for reply.

I am going to use "uname -n" instead of "hostname -s".
I am really weak in scripting but I want to learn now more more things.

Would you be so kind to guide me on this:
1. how to define variable for systems?
2.where to put this command
ssh systemA 'uname -n' ;which returns the hostname of remote system.

I actually asking you the whole script, but once I execute thhis script , I will build many things through it.

Please suggest Chubler_XL.

Thanks in Advance.

---------- Post updated at 01:15 AM ---------- Previous update was at 12:55 AM ----------

Hello Chubler_XL,

Would you please post me the entire code?
It will be GREAT help for me.

Then I will build on it.

Thanks in advance.
Manali
# 6  
Old 01-23-2013
You could run a script something like this on systemZ

Code:
for SYSTEM in systemA systemB systemC
do
    HOST=`ssh $SYSTEM uname -n`
    [ -d /usr/local/backup/${HOST}-Files/ ] || mkdir -p /usr/local/backup/${HOST}-Files/
    scp -p \
        $SYSTEM:/etc/passwd \
        $SYSTEM:/etc/group \
        $SYSTEM:/etc/shadow \
        $SYSTEM:/etc/printers.conf \
        /usr/local/backup/${HOST}-Files/
done

The backslash on the end of a line allows 1 big line to be split over several, this is a human readability thing.

Here I copy several files with the one scp command, this reduces the scp connection and disconnection overheads. You can think of it like ringing someone and saying one word and hanging up, it would take a long time to tell them a whole sentence.
# 7  
Old 01-24-2013
RedHat
Code:
#!/bin/bash
REM_SERVER=mainserver100

if [ $# -lt 1 ]; then
        echo "Usage:  test.sh REMOTE_SERVER"
exit
fi
SSH_SERVER=`ssh $1 exec uname -n`
if [ $REM_SERVER = $SSH_SERVER ]; then
cd /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/passwd /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/group /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/services /DRFiles/$SSH_SERVER  /etc/profile
scp $SSH_SERVER:/etc/printers.conf /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/profile /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/dfs/dfstab  /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/dfs/sharetab  /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/vfstab  /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/shells  /DRFiles/$SSH_SERVER

$SSH_SERVER
/usr/local/bin/sudo cp /etc/shadow /users/sysmgr
/usr/local/bin/sudo /usr/bin/chmod 755  /users/sysmgr/shadow
scp $SSH_SERVER:/users/sysmgr/shadow /DRFiles/$SSH_SERVER

else
cd /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/passwd /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/group /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/services /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/printers.conf /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/profile /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/vfstab  /DRFiles/$SSH_SERVER
scp $SSH_SERVER:/etc/shells  /DRFiles/$SSH_SERVER

$SSH_SERVER
/usr/local/bin/sudo cp /etc/default/passwd /users/sysmgr/default-passwd
/usr/local/bin/sudo /usr/bin/chmod 755  /users/sysmgr/default-passwd
scp $SSH_SERVER:/users/sysmgr/default-passwd /DRFiles/$SSH_SERVER

$SSH_SERVER
/usr/local/bin/sudo cp /etc/shadow /users/sysmgr
/usr/local/bin/sudo /usr/bin/chmod 755  /users/sysmgr/shadow
scp $SSH_SERVER:/users/sysmgr/shadow /DRFiles/$SSH_SERVER

$SSH_SERVER
/usr/local/bin/sudo cp /usr/local/bin/stats /users/sysmgr
/usr/local/bin/sudo /usr/bin/chmod 755  /users/sysmgr/stats
scp $SSH_SERVER:/users/sysmgr/stats /DRFiles/$SSH_SERVER

fi

we execute this script in this way
Code:
./test.sh servername1
./test.sh servername2
./test.sh servername3

can you help me better this script
Last edited by Franklin52; 01-25-2013 at 05:40 AM.. Reason: Please use code tags for data and code samples
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