Using linux shell script using sed replacing "\"

Question

I need to replace char "\\" and it is not working. my script as follow. I'm using same script for many other replacements and somehow this is not working.

export VCA='http:\\/\\/localhost\\/dev1'
export VCB='https:\\/\\/www.mydomain.com'
sed "s~${VCA}~${VCB}~g" tmp2.sql > tmp3.sql

I don't see error anymore but it does not replace the string.

Answer 1

Try:

VCA='http://localhost/dev1' 
VCB='https://www.example.com'
sed "s~${VCA}~${VCB}~g" tmp2.sql > tmp3.sql

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Note: stackoverflow 's answer text editor seems to dislike having www.mydomain.com in the code, so $VCB uses a dummy value which can be changed back as needed.