Sometimes we need to search and replace variables containing slashes ('/') in Linux. The default format of sed command will not allow this as its using slashes ('/') as delimiter.
So we need to use an alternate regex delimiter as sed allows you to use any delimiter (including control characters).
Let's see one example.
#sed "s~$sourcevar~$replacevar~g" filename
Here we need to replace sourcevar, replacevar and filename accordingly.
This method will really helps in bash scripting.