TLDR
Enter a command. For example: mv, llvm g++, postcss, xkill, osage.

wait

 
Wait for a process to complete before proceeding. More information: https://manned.org/wait.
 
  • Wait for a process to finish given its process ID (PID) and return its exit status:
     
    wait {{pid}}
     
  • Wait for all processes known to the invoking shell to finish:
     
    wait

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