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Find and replace the value in a variable

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# 1  
Old 09-20-2005
Find and replace the value in a variable
I have a variable whose value is

I="user1:x:1100:1200:ID for user1:/home/user1:/bin/ssh-dummy-shell"

I want to replace the last part '/bin/ssh-dummy-shell' with '/bin/true'

I tried using sed but it garbled

sed 's/\/bin\/ssh-dummy-shell/\/bin\/true' $I

Thanks for the help
# 2  
Old 09-20-2005
Try this :
echo $I | sed -e "s/\/bin\/ssh-dummy-shell/\/bin\/true/g"
# 3  
Old 09-20-2005
echo $I | awk 'IFS=OFS=":" {$NF="/bin/true";print $0}'
# 4  
Old 09-20-2005
I=${I%ssh-dummy-shell}true
# 5  
Old 09-20-2005
Quote:
Originally Posted by Ygor
I=${I%ssh-dummy-shell}true
yes although I would quote it because field 4 could contain spaces.

I="${I%ssh-dummy-shell}true"
# 6  
Old 09-21-2005
Thanks a lot for your help
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