How to show selected string using grep from file and replace it with new input string
 

Hello Friends,

I want to print string with its value from file and and again replace with new value, example below:-

cat > abc.txt
Default_user=d13703,password=az*12345

I want show "password=az*12345" and replace with "new password=az*45678".

please suggest me what to do?

Pipe cat (or grep) through cut and use comma as field delimiter (man cut).

You can do that with GNU sed.

Philip

Thanks friend it helpful for me...