I have a script a.sh which will deploy files in multiple servers .The argument for the a.sh is abc.gz host1.conf
where abc.gz is a zip file and one.conf will contain all the database connection string .
Now I have to write a b.sh which will call a.sh internally but the argument to the b.sh are three remote hosts
Now the host.conf will have the ip address ,so that b.sh will be executed on the that host after connection through ssh inside the bash shell script .
Please help me on this .
Last edited by rbatte1; 02-10-2015 at 07:57 AM..
Reason: Added CODE tags
guys i need bit of help!!
i am writing a script which finds files that have not been accessed for a no of days and delete those files...the no of days value is inputted at the command line....
i am using the following :
find $1 -atime +7 -exec rm -i
in the second step i want to copy all... (2 Replies)
Hello fellas or ladies.
I am new on this site and new to the unix operating system. I have been working with UNIX and i love it so far, i learned some stuff and most of the beneficiary command but I need help renaming all the files in my directory and doing them one by one is just tiring.... (1 Reply)
Hello fellas or ladies.
I am new on this site and new to the unix operating system. I have been working with UNIX and i love it so far, i learned some stuff and most of the beneficiary command but I need help renaming all the files in my directory and doing them one by one is just tiring. is there... (3 Replies)
Hello Friends,
I am very new to scripting and currently have come across a situation where I need to create a UNIX script which would look for certain text in a file and then email me if it finds it.
I am trying to trouble shoot an issue with our internet websites and I need to know when I... (1 Reply)
Hi,
My task is to check the file test.txt every 15 min from Mon-Fri 9:00AM - 6:00PM. We get this file from our mainframes, every 15 min it will update the same file.
My task is to compare file timestamp with current system time stamp and check if the file is updated or not.
If the file doesn't... (0 Replies)
Evening all,
Im trying to get a script that will:
Select the most 3 recent files in a specific directory
Run a command on them (like chmod)
Ask of you would like to continue
Copy the files to another directory
If a linux guru could help me out, it would be very much appreciated.
Thanks... (2 Replies)
Hi All,
I have a conf file and it has two entries seperated by comma, look like :-
best1,ls /opt/bmc/Patrol3/*/best1
......, .......................
In which "Best1" is the product name and "ls /opt/bmc/Patrol3/*/best1" is the way to find the product version of Best1 in that particular... (5 Replies)
Hi Guys,
I need help in scripting out the below :
this is a sample data i have in my file:
jobname type 8:00:00 AM
I need to remove the ":00" from the time field alone.
Thanks in advance for all ur help (8 Replies)
Hi @ all
I have the following scenario:
As Admin of a cupple of servers I tried to write the following script to figure out, if the machine is up and available and if some directory´s were available. But my script is having some probs, while running. Maybe some of you have a better way to... (9 Replies)
Hi folks,
need a small help
lets say i have a text file with the following content:
james
tom
jack
spielberg
i want to append text to the beginning of each line with a variable(lets says FirName:) and i want to combine all the names with a space in between and store it in another... (11 Replies)
Discussion started by: tech_frk
11 Replies
LEARN ABOUT OPENSOLARIS
ssh-keyscan
ssh-keyscan(1) User Commands ssh-keyscan(1)NAME
ssh-keyscan - gather public ssh host keys of a number of hosts
SYNOPSIS
ssh-keyscan [-v46] [-p port] [-T timeout] [-t type]
[-f file] [-] [host... | addrlist namelist] [...]
DESCRIPTION
ssh-keyscan is a utility for gathering the public ssh host keys of a number of hosts. It was designed to aid in building and verifying
ssh_known_hosts files. ssh-keyscan provides a minimal interface suitable for use by shell and perl scripts. The output of ssh-keyscan is
directed to standard output.
ssh-keyscan uses non-blocking socket I/O to contact as many hosts as possible in parallel, so it is very efficient. The keys from a domain
of 1,000 hosts can be collected in tens of seconds, even when some of those hosts are down or do not run ssh. For scanning, one does not
need login access to the machines that are being scanned, nor does the scanning process involve any encryption.
File Format
Input format:
1.2.3.4,1.2.4.4
name.my.domain,name,n.my.domain,n,1.2.3.4,1.2.4.4
Output format for rsa1 keys:
host-or-namelist bits exponent modulus
Output format for rsa and dsa keys, where keytype is either ssh-rsa or `ssh-dsa:
host-or-namelist keytype base64-encoded-key
OPTIONS
The following options are supported:
-f filename Read hosts or addrlist namelist pairs from this file, one per line. If you specity - instead of a filename,
ssh-keyscan reads hosts or addrlist namelist pairs from the standard input.
-p port Port to connect to on the remote host.
-T timeout Set the timeout for connection attempts. If timeout seconds have elapsed since a connection was initiated to a
host or since the last time anything was read from that host, the connection is closed and the host in question
is considered unavailable. The default is for timeout is 5 seconds.
-t type Specify the type of the key to fetch from the scanned hosts. The possible values for type are rsa1 for protocol
version 1 and rsa or dsa for protocol version 2. Specify multiple values by separating them with commas. The
default is rsa1.
-v Specify verbose mode. Print debugging messages about progress.
-4 Force to use IPv4 addresses only.
-6 Forces to use IPv6 addresses only.
SECURITY
If a ssh_known_hosts file is constructed using ssh-keyscan without verifying the keys, users are vulnerable to man-in-the-middle attacks.
If the security model allows such a risk, ssh-keyscan can help in the detection of tampered keyfiles or man-in-the-middle attacks which
have begun after the ssh_known_hosts file was created.
EXAMPLES
Example 1 Printing the rsa1 Host Key
The following example prints the rsa1 host key for machine hostname:
$ ssh-keyscan hostname
Example 2 Finding All Hosts
The following commands finds all hosts from the file ssh_hosts which have new or different keys from those in the sorted file
ssh_known_hosts:
$ ssh-keyscan -t rsa,dsa -f ssh_hosts |
sort -u - ssh_known_hosts | diff ssh_known_hosts -
FILES
/etc/ssh_known_hosts
EXIT STATUS
The following exit values are returned:
0 No usage errors. ssh-keyscan might or might not have succeeded or failed to scan one, more or all of the given hosts.
1 Usage error.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWsshu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO ssh(1), sshd(1M), attributes(5)AUTHORS
David Mazieres wrote the initial version, and Wayne Davison added suppport for protocol version 2.
BUGS
ssh--keyscan generates
Connection closed by remote host
messages on the consoles of all machines it scans if the server is older than version 2.9. This is because ssh-keyscan opens a connection
to the ssh port, reads the public key, and drops the connection as soon as it gets the key.
SunOS 5.11 24 Jul 2004 ssh-keyscan(1)