The difference between exit0 exit1 in the shell

Exit (0): Run the program normally and exit the program;

Exit (1): Abnormal operation results in exiting the program;

Exit 0 can tell the user of your program: Your program is finished properly. If exit is not a value of 0, then the user of your program will generally assume that your program has produced an error.
After calling your program in the shell, use echo $? command to see the exit value of your program. In a shell script, it is usually based on the last command's $? Value to perform some process control.

The difference between exit0 exit1 in the shell