Regarding the use of Nodejs under mac terminals, it is not possible to return to the upper directory.

  node.js, question

First, I executed the following command

dpd create sportsstore
 
 dpd -p 5500 sportsstore/app.dpd
 dashboard

The above command can be executed normally, but I need to return to the superior directory to execute another command, but I cannot return to the superior with cd .. nor can I return to the cd directory. I can only exit by ending the current service with control plus z, but I cannot guarantee the operation of the two services. please ask for help.
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Command t can’t you open a new tab?