» Linux » Examen sur Linux » Examen 201 : Advanced Administration » Section 3 » Question 3/20

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3.You are creating a script with demands that the previous command execute correctly. How would you correctly test the exit status of the previous command in BASH?

if [ "$#" -eq "0" ]; then...
if [ "$?" -eq "0" ]; then...
if [ '$#' == 0 ]; then...
if [ '$?' == '0']; then...
if [ $@ -eq 0 ]; then...

Explanation

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