05-24-2010
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
Can anyone tell/guide me how to check remote host is up/running using bash script?
Thanks.
Zulfiqar (5 Replies)
Discussion started by: zulfikarmd
5 Replies
2. Shell Programming and Scripting
I am using KSH and I need to check whether the remote host has been configured with ssh public key. Is there any way we can check inside a script? (6 Replies)
Discussion started by: praveenbvarrier
6 Replies
3. Shell Programming and Scripting
Hi, could anyone please tell me how to ssh to remote host foo and execute command on it and print the result on local host?
Thanks,
Paresh (1 Reply)
Discussion started by: masaniparesh
1 Replies
4. UNIX for Advanced & Expert Users
I do a ssh to remote host(A1) from local host(L1). I then ssh to another remote(A2) from A1.
When I do a who -m from A2, I see the "connected from" as "A1".
=> who -m
userid pts/2 2010-03-27 08:47 (A1)
I want to identify who is the local host who initiated the connection to... (3 Replies)
Discussion started by: gomes1333
3 Replies
5. UNIX for Dummies Questions & Answers
I am able to connect to a remote host using the legacy IP and port 2222.
Today the remote has a new IP I am unable to connect.
How to check if the remote host is blocking or if its my server is unable to connect.
Err Msg : telnet: Unable to connect to remote host: Connection refused
Err... (5 Replies)
Discussion started by: ITDev01
5 Replies
6. Shell Programming and Scripting
Hi,
Given addresses of 2 remote machines, using a shell script is it possible to
get the state of running processes in "src"
stop all the processes in "src"
exit out of "src"
ssh into "dest"
resume the state of executing processes captured in step 1 in "dest"
Assumption:
"src" is... (3 Replies)
Discussion started by: Saeya Darsan
3 Replies
7. Shell Programming and Scripting
How should i make the following code working
#!/bin/bash
INPUTFILE="test.txt"
while read STRING; do
IP=`host -t A $STRING | awk '{print $NF}'`
HOSTNAME=`ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no $IP "hostname"`
echo $HOSTNAME > out.txt
done < $INPUTFILE
At this moment while... (3 Replies)
Discussion started by: urello
3 Replies
8. Shell Programming and Scripting
Geeks,
Could you please help me out in my script and identify the missing piece. I need to check/get the exit status of a remote command executed on remote host through script and send out an email when process/processes is/are not running on any/all server(s).
Here's the complete... (5 Replies)
Discussion started by: lovesaikrishna
5 Replies
9. Shell Programming and Scripting
I have below command to check for error logs from last 24 hours from the file : /var/log/messages/ The command is working fine on the local host.
sudo awk -F - -vDT="$(date --date="24 hours ago" "+%b %_d %H:%M:%S")" ' DT < $1' /var/log/messages | egrep -i "error|fail"
I want to run the... (8 Replies)
Discussion started by: rahul2662
8 Replies
10. UNIX for Beginners Questions & Answers
Hi all, posting my first time, hope not breaking posting rules with it, if yes, let me know.
I'm trying to build a script to check a file in an sftp server through a remote server.
The intention is to check the file in a sftp host, and if the file is found or not, it should send an email.... (4 Replies)
Discussion started by: MrShinyPants
4 Replies
LEARN ABOUT SUSE
tnm::udp
udp(n) Tnm Tcl Extension udp(n)
__________________________________________________________________________________________________________________________________________________
NAME
udp - Send and receive UDP datagrams.
_________________________________________________________________
DESCRIPTION
The udp command allows to send and receive datagrams using the User Datagram Protocol (UDP) (RFC 768).
UDP COMMAND
udp open [port]
The udp open command opens a UDP datagram socket and returns an udp handle. The socket is bound to given port number or name. An
unused port number is used if the port argument is missing.
udp connect host port
The udp connect command opens a UDP datagram socket and connects it to a port on a remote host. A connected UDP socket only allows
to send messages to a single destination. This usually allows to shorten the code since there is no need to specify the destination
address for each udp send command on a connected UDP socket. The command returns a udp handle.
udp send handle [host port] message
The udp send command sends a datagram containing message to the destination specified by host and port. The host and port arguments
may not be used if the UDP handle is already connected to a transport endpoint. If the UDP handle is not connected, you must use
these optional arguments to specify the destination of the datagram.
udp receive handle
The udp receive command receives a datagram from the UDP socket associated with handle. This command blocks until a datagram is
ready to be received. In most cases, it might be a good idea to check for pending datagrams using the udp bind command.
udp close handle
The udp close command closes the UDP socket associated with handle.
udp bind handle readable [script]
udp bind handle writable [script]
The udp bind command allows to bind scripts to a UDP handle. A script is evaluated once the UDP handle becomes either readable or
writable, depending on the third argument of the udp bind command. The script currently bound to a UDP handle can be retrieved by
calling the udp bind command without a script argument. Bindings are removed by binding an empty string.
udp info [handle]
The udp info command without the handle argument returns a list of all existing UDP handles. Information about the state of a UDP
handle can be obtained by supplying a valid UDP handle. The result is a list containing the source IP address, the source port, the
destination IP address and the destination port.
SEE ALSO
scotty(1), Tnm(n), Tcl(n)
AUTHORS
Juergen Schoenwaelder <schoenw@cs.utwente.nl>
Tnm udp(n)