Replace "[ with [ using shell script

[harigottala0]

Dear All,

While fetching the data using API, Json response file is created. but it is not in standard Json file format. We are getting extra double quote in Response json varaible.

"Status":"S","Message":"Success","ResponseJson":"[{ so how to remove single double qoute.

For this I am using the Unix script to remove or replace "[ with [. So, while create the file it is thrwoing  an eror

[andreas_lds]

We need to see the script and the error message to suggest a fix.