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Trouble with passing variable to sed

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# 1  
Old 06-15-2012
Network Trouble with passing variable to sed
Here is my code

#!/bin/bash
username=gnowicki
sed '$s/$/ $username/' < sshd_config 1 <> sshd_config

what this is supposed to do is take the name gnowicki and put it at the end of the last line of the sshd_config and it works except not using the variable, if I put the name "gnowicki" where "$variable" is it puts gnowicki at the end of the line correctly but if I put "$username" it will put "$username" in the sshd_config file and I only want what the variable equals.

what do I need to do? Smilie
# 2  
Old 06-15-2012
use " instead of '
# 3  
Old 06-15-2012
Code:
sed "$ s/$/ $username/" 

#note: the space after the first $

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