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How does “do something OR DIE()” work in Perl?
The die() function can be used to stop the script and can be used to display a message to the end user. It can be used at the right side of the OR ( || ) operator and at left side can be any expression like the eval() function.
Case 1 − Using die() function with no parameter
_ function_no_parameter.jpg)
The following is the output.
_ function_no_parameter_output.jpg)
Now we can use $! to print the error number and a message to the user in the die() function.
Case 2 − Use of $! in the die() function
_ function.jpg)
The following is the output.
_ function_output.jpg)
Case 3 − Display some message to the end user with the die() function
_ function.jpg)
The following is the output.
_ function_output.jpg)
Updated on 30-Jul-2019 22:30:23
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