Perl file exists e

Isn't the -e test going to the source of the problem? Less portable, though. By whom? I doubt that Perl's bug rate is higher than those. Larry expects that he'll be certified before Perl is. What does this mean in practice? Is someone confusing 'certified' with 'standardized'? Old habits die hard. If the file doesn't exist, unlink will fail, but provided you don't try and catch the error, your program will keep running. The usual caveats about unlink and file permissions apply. Quality of perl implementations Was: Re: if file already exists then remove English parsing module - does one exist already?

In the above program, we can see we have first declared a file path that specifies the location of the file specified. This path is specifying the path of the file which we are going to check if this file exists in the given path or directory. The output of the above can be seen in the screenshot. So remember whenever specifying the file name then we should carefully specify the path also else it will give a file not found. In the above program, we can see we have declared two file names and its specified path in which the file is present.

The output of the above-given program is as shown in the screenshot. In this article, we conclude that the file existence checking in Perl is very simple by using the file test operator which is a unary operator and is used for checking if a file is present or not using —e as file existence check operator.

In this article, we saw how to use —e file test operator with examples and syntax. Ask Question. Asked 11 years, 9 months ago.

Active 7 months ago. Viewed k times. TGZ"; myMock. Yu Hao k 42 42 gold badges silver badges bronze badges. Add a comment. Active Oldest Votes. Greg Bacon Greg Bacon k 29 29 gold badges silver badges bronze badges. Yes, -e works with relative paths, but I think I may have misunderstood your question. Do you have a directory named myMock. TGZ , and you want to know whether that directory contains a file with a particular name? Help us give you better answers by editing your question to include examples!

You might want a variant of exists This unary operator takes one argument, either a filename, a filehandle, or a dirhandle, and tests the associated file to see if something is true about it. With the exception of the -l test they all follow symbolic links because they use stat and not lstat so dangling symlinks can't be examined and will therefore report failure.

Despite the funny names, precedence is the same as any other named unary operator. The operator may be any of:. These operators are exempt from the "looks like a function rule" described above.

That is, an opening parenthesis after the operator does not affect how much of the following code constitutes the argument. Put the opening parentheses before the operator to separate it from code that follows this applies only to operators with higher precedence than unary operators, of course :. The interpretation of the file permission operators -r , -R , -w , -W , -x , and -X is by default based solely on the mode of the file and the uids and gids of the user. There may be other reasons you can't actually read, write, or execute the file: for example network filesystem access controls, ACLs access control lists , read-only filesystems, and unrecognized executable formats.