102-500 Exam - Question 41

Question

What information is provided by the echo $$ command?

Examice · Accepted Answer

The echo $$ command provides the process ID of the current shell. This is because the $$ variable in Unix-like systems refers to the process ID of the currently running shell instance.

Roger95 · Answer

[root@rhel8-02 ~]# ps -p `echo $$`
    PID TTY          TIME CMD
   1837 pts/0    00:00:00 bash

blk_542 · Answer

To prove it:
ps aux | grep bash
and compare it with previous echo $$

102-500 Exam - Question 41

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