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Hi, i apologize if my post is off-topic, so, i'm in developing bacula into synology, but i have several programming question, first of all, i need to search via sed a string like this 
 

dbpassword = "" 

and i need to change like this 
 

dbpassword = "something that comes from a variable"  

If someone would like to help, i can write more info 
Many Thanks 

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16 minutes ago, flyride said:

Here is one way:

 

$ n=\"newpass\"
$ echo dbpassword="" >/tmp/test
$ sed "s/dbpassword=""/dbpassword=$n/" /tmp/test

dbpassword="newpass"

$

Thank you very much i will try 

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