How to Tell if a File Exists in Perl

Step by step instructions to Tell if a File Exists in Perl Perl has a lot of valuable document test administrators that can be utilized toâ see whether a record exists or not. Among them is - e, which verifies whether a document exists. This data could be helpful to you when you are taking a shot at a content that requirements access to a particular record, and you need to be certain that the document is there before performing tasks. In the event that, for instance, your content has a log or an arrangement document that it relies on, check for it first. The model content beneath tosses a distinct mistake if a document isn't discovered utilizing this test. #!/usr/canister/perl$filename/way/to/your/file.doc;if (- e $filename) {print File Exists!;} To begin with, you make a string that contains the way to the record that you need to test. At that point you wrap the - e (exists) proclamation in a contingent square with the goal that the print explanation (or whatever you put there) is possibly called if the document exists. You could test for the inverse that the document doesn't exist-by utilizing the except if restrictive: except if (- e $filename) {print File Doesnt Exist!;} Other File Test Operators You can test for at least two things one after another utilizing the and () or the or (||) administrators. Some other Perl document test administrators are: - r checks if the record is meaningful w checks if the document is writeable-x checks if the document is executable-z checks if the document is vacant f checks if the record is a plain document d checks if the document is a registry l checks if the document is an emblematic connection Utilizing a record test can assist you with keeping away from mistakes or make you mindful of a blunder that should be fixed.