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Top Forums Shell Programming and Scripting script check the users in SHELL ? Post 302163294 by Karthikeyan_113 on Thursday 31st of January 2008 03:07:56 PM
Old 01-31-2008
MySQL Try this....

Hi

Below is the piece with which you can achieve your task.

Code:
while [[ -z $user ]]
do
echo "Enter the user name : "
read user
done

echo
echo "Validating the $user ..."
if [[ `grep -c $user /etc/passwd` -eq 0 ]]
then
   echo
   echo "ERROR : PLEASE ENTER A VALID USERNAME."
   echo "Exiting ..."
   exit 1
else
   echo
   echo "$user IS A VALID USER."
   echo "Checking whether the $user is logged on or not ..."
   echo
fi

if [[ `who | grep -c $user` -eq 0 ]]
then
   echo
   echo "$user IS NOT LOGGED INTO THE SERVER !!!"
   echo
   exit 0
else
   echo
   echo "$user IS LOGGED INTO THE SERVER !!!"
   echo
fi

Below are its execution steps.

Quote:
$ > check_user.sh
Enter the user name :
root

Validating the root ...

root IS A VALID USER.
Checking whether the root is logged on or not ...


root IS NOT LOGGED INTO THE SERVER !!!

$ >
==========
Thanks,
Karthikeyan.
==========
 

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SSH2_METHODS_NEGOTIATED(3)						 1						SSH2_METHODS_NEGOTIATED(3)

ssh2_methods_negotiated - Return list of negotiated methods

SYNOPSIS
array ssh2_methods_negotiated (resource $session) DESCRIPTION
Returns list of negotiated methods. PARAMETERS
o $session - An SSH connection link identifier, obtained from a call to ssh2_connect(3). RETURN VALUES
EXAMPLES
Example #1 Determining what methods were negotiated <?php $connection = ssh2_connect('shell.example.com', 22); $methods = ssh2_methods_negotiated($connection); echo "Encryption keys were negotiated using: {$methods['kex']} "; echo "Server identified using an {$methods['hostkey']} with "; echo "fingerprint: " . ssh2_fingerprint($connection) . " "; echo "Client to Server packets will use methods: "; echo " Crypt: {$methods['client_to_server']['crypt']} "; echo " Comp: {$methods['client_to_server']['comp']} "; echo " MAC: {$methods['client_to_server']['mac']} "; echo "Server to Client packets will use methods: "; echo " Crypt: {$methods['server_to_client']['crypt']} "; echo " Comp: {$methods['server_to_client']['comp']} "; echo " MAC: {$methods['server_to_client']['mac']} "; ?> SEE ALSO
ssh2_connect(3). PHP Documentation Group SSH2_METHODS_NEGOTIATED(3)
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