Check that file exists: Difference between revisions
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Since in Linux an ''empty'' directory has a size of 4K bytes, we check the number of files it contains to confirm that it's empty.
<syntaxhighlight lang="
for (name in ["input.txt", "`Abdu'l-Bahá.txt"]) {
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docs directory exists and contains 0 files.
</pre>
=={{header|XPL0}}==
Attempting to open a non-existent file or directory will cause an error.
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