CODEWITHSUNDEEP
bash
Atli Þrastarson
Atli Þrastarson

Reputation: 55

How can I replace an error message displayed by bash

I am trying to execute a script and store the output of it in a variable rather than displaying it on stdout. My problem is the script I am using I cannot change and it uses stty so no matter what I try I always get the error:

stty: standard input: Inappropriate ioctl for device

My code looks like:

        req="script $ip"
        response=$($req)
        echo $response

I am echoing the request to stdout at the end because I want the user to see it but I also need part of it to be processed in my script.

The script is working as intended it just annoys me that the error message is always displayed to the user.

I have tried adding:

response=$($req "&>/dev/null)

and

response=$($req) &>/dev/null

but no luck and the error message still displays.

I basically just want to hide it from the user.

Upvotes: 2

Views: 463

Answers (1)

Eugeniu Rosca
Eugeniu Rosca

Reputation: 5305

eval can help you, but it is insecure.

Use the following method (an eval alternative):

cmd=(script "$ip")
response=$("${cmd[@]}" 2>/dev/null)
echo "$cmd"

Upvotes: 5

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