Pergunta de entrevista da empresa Meta: What does "$?" mean in bash?

Pergunta de entrevista da empresa Meta

What does "$?" mean in bash?

Sigiloso

6 de dez. de 2019

returns the status code of the last executed command

Sigiloso

21 de mai. de 2022

The exit code of the last executed command.

Sigiloso

21 de mai. de 2022

The exit code of the last executed command.

Sigiloso

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.

Sigiloso

30 de out. de 2019

referencing or retrieving the value of a variable