Quel est le résultat de la commande suivante ? echo $?

Question

What does the variable "$?" expand to?

Accepted Answer

Expands to the exit status of the most recently executed foreground command.

Answer

Expands to the last argument passed to a shell script or function call

Answer

Expands to the number of arguments passed to a shell scripts or function call

Answer

Expands to the exit status of the most recently executed background command.

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