Question

$SSH_CLIENT has IP address with some port info, and echo $SSH_CLIENT gives me ‘10.0.40.177 52335 22’, and Running


if [ -n "$SSH_CONNECTION" ] ;
then
for i in $SSH_CLIENT
do
echo $i
done
fi


gives me

• 10.0.40.177
• 52335
• 22

And I see the first element is the IP address.

Q : How can I get the first element of $SSH_CLIENT?
${SSH_CLIENT[0]} doesn’t work.

Answer 1

sshvars=($SSH_CLIENT)
echo "${sshvars[0]}"

or:

echo "${SSH_CLIENT%% *}"