Question d'entrevue chez Meta: What does "$?" mean in bash?

Question d’entretien chez Meta

What does "$?" mean in bash?

Utilisateur anonyme

6 déc. 2019

returns the status code of the last executed command

Utilisateur anonyme

21 mai 2022

The exit code of the last executed command.

Utilisateur anonyme

21 mai 2022

The exit code of the last executed command.

Utilisateur anonyme

9 mars 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.

Utilisateur anonyme

30 oct. 2019

referencing or retrieving the value of a variable