We have a file generated automatically and it shows

name = "n80as9hsb"

Wanted to replace based on the hostname , for example

name = "acme.example.com"

Tried using this below script, it works..

#!/bin/bash
sed -i -e 's/name = "[^"]*"/name = "foo"/' abc.txt

However, when tried using this

#!/bin/bash
h_value=$(hostname)
sed -i -e 's/name = "[^"]*"/name = "${h_value}"/' abc.txt

It returns as below wrong, pls confirm what to correct ?

name = "${valu}"