Data update

Task/Delete-a-file/ArkScript/delete-a-file.ark

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+# io:removeFiles can take multiple path to delete
+(io:removeFiles "input.txt" "/input.txt")
+(io:removeFiles "docs" "/docs")
+# or just one
+(io:removeFiles "input.txt")
+(io:removeFiles "/input.txt")
+(io:removeFiles "docs")
+(io:removeFiles "/docs")

Task/Delete-a-file/Maxima/delete-a-file.maxima

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+load("operatingsystem")$
+delete_file("output.txt")$
+delete_file("/output.txt")$
+rmdir("docs")$
+rmdir("/docs")$

Task/Delete-a-file/Pluto/delete-a-file.pluto

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+os.remove("input.txt")
+os.remove("/input.txt")
+
+os.remove("docs")  -- must be empty
+os.remove("/docs") -- ditto