How to check if file exists (Perl)
To check if anything exists at given file path use the
print "$anything exists!\n" if -e $in_path;
This is the broad test for also directory, a named pipe, a symlink.
If you need just a file (preferable with extension, like .txt) you need -f switch. The
-f file-test operator asks whether a plain file exists.
print "plain $file exists!\n" if -f $in_path;
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