Discarding only standard error | LPIC-1 101-500 Exam original practice question

103.4Basic

Display probe's standard output on the terminal.

Discard standard error without displaying or saving it.

Which command is appropriate?

Hint 1: Focus on the system role

Separate firmware, boot, storage, process, and filesystem roles before comparing the choices.

Hint 2: Key terms

Review the short definitions of the LPIC-1 101 concepts involved.

stdout: File descriptor 1, normally used for a command's ordinary output.
stderr: File descriptor 2, normally used for diagnostics and error messages.
Pipe: A shell connection that sends one command's standard output to the next command's standard input.
Redirection: Shell syntax that reconnects standard input or output to a file or another destination.
tee: A command that copies input to standard output and one or more files at the same time.

Detailed explanation

Incorrectprobe > /dev/null

Incorrect. It discards standard output and leaves standard error visible.

Correctprobe 2> /dev/null

Correct. Only standard error is sent to /dev/null.

Incorrectprobe < /dev/null

Incorrect. It redirects standard input from /dev/null.

Incorrectprobe 2>&1

Incorrect. It merges standard error into standard output rather than discarding it.

An example you can run in a temporary verification environment.

bash -c 'printf OUT; printf ERR >&2' 2>/dev/null

OUT

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKP-103-070

EnvironmentBash 5.2

Last technical review2026-08-12

More practice in this area