[SOLVED] Suppress console logging on Linux

Issue

I am working with shell scripts for some automation tasks. I have functions defined in my script which are executed however the tasks performed by some of the functions logs a lot of data on the terminal screen which is irrelevant.

Is there a way in which I can suppress the console logging before calling a particular function and enable it back when the function execution is finished?

Solution

You can supress the output of a program redirecting it to the special file /dev/null.

Note that there are two kind of output, normal output (stdout) and error output (stderr)

To redirect all output use

command_or_function [args] &>/dev/null

If you want to supress the output for multiple commands, use { }

{
  ...
  commands
  ...
} &>/dev/null

The redirection can be placed at any position, even before command.

&>/dev/null echo hello

To redirect only stdout use >

To redirect only stderr use 2>

See more here

Answered By - nadapez

Answer Checked By - Marie Seifert (WPSolving Admin)