categorized answer
QandAEditors
Filetest operators can be found at [id://370]. Just a day or so ago [swiftone] showed me the "_" shortcut for performing multiple tests on one file. Yet another way to look at it.
<code>
if (-s $file && -T _) {
# do stuff with text file > 0bytes
}
if (-s $file && -B _) {
# do stuff with binary file > 0bytes
}
</code>
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