The operator -e (like the other -X operators) takes a filename or file
handle, and not a glob or file name pattern with wildcards. As others
pointed, you use the builtin glob to do the expansion (either explicitly
or via <>).
Then you might say:
for (glob 'file*') {
print "true\n" if -e $_;
}
Note that if the glob was expanded, it is generally obvious that the file
exists (that is, -e $_ above will be true above). But if no filename
matching 'file*' was found, the function return 'file*' unchanged.
Regards,
Adriano.
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