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 document, and you need to be certain that the record is there before performing tasks. On the off chance that, for instance, your content has a log or a setup document that it relies on, check for it first. The model content underneath tosses a graphic mistake if a record isn't discovered utilizing this test. #!/usr/container/perl$filename/way/to/your/file.doc;if (- e $filename) {print File Exists!;} To start 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) articulation in a contingent square so the print proclamation (or whatever you put there) is possibly called if the document exists. You could test for the inverse that the record 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 intelligible w checks if the document is writeable-x checks if the document is executable-z checks if the record is vacant f checks if the record is a plain record d checks if the record is a registry l checks if the record is a representative connection Utilizing a record test can assist you with maintaining a strategic distance from blunders or make you mindful of a mistake that should be fixed.