Pregunta de entrevista en Meta: What does "$?" mean in bash?

Pregunta de entrevista de Meta

What does "$?" mean in bash?

Anónimo

6 de dic de 2019

returns the status code of the last executed command

Anónimo

21 de may de 2022

The exit code of the last executed command.

Anónimo

21 de may de 2022

The exit code of the last executed command.

Anónimo

9 de mar de 2019

How would you suggest preparing for the systems interview round? I have never given a systems interview before and am about to start my preparation.

Anónimo

30 de oct de 2019

referencing or retrieving the value of a variable