Understanding the MS-DOS COPY command: What can the COPY command accomplish in standard DOS usage?
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ACopy files from one floppy disk to another floppy disk
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BCopy one or more files within the same disk or directory structure
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CCombine (concatenate) two or more files into a single file
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DAll of the above
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ENone of the above
Answer
Correct Answer: All of the above
Explanation
Introduction / Context:The MS-DOS COPY command is a versatile tool for file operations. While DISKCOPY clones entire disks, COPY focuses on files and can operate across drives, directories, and even concatenate files. Understanding these capabilities prevents misuse and streamlines maintenance tasks.
Given Data / Assumptions:
- You are moving or duplicating files, not entire disk images.
- Both source and destination paths can reference different drives (e.g., A: to B:).
- Concatenation uses the “+” operator in COPY.
Concept / Approach:COPY supports copying from one drive to another (e.g., COPY A:FILE.TXT B:), copying multiple files (wildcards), and concatenating files (e.g., COPY FILE1+FILE2 OUTPUT.TXT). It cannot create a sector-by-sector disk copy—that is DISKCOPY’s job—but it can certainly copy files between floppy disks if drives and paths are specified correctly.
Step-by-Step Solution:
Confirm that file-level copying is required (vs disk cloning).Recognize COPY can target another drive letter for cross-disk transfers.Remember concatenation syntax: COPY file1+file2 newfile.All listed actions are supported by COPY, so choose “All of the above.”Verification / Alternative check:Test with simple text files and different drives; observe successful copies and concatenations. Use DIR to verify results.
Why Other Options Are Wrong:Each single option is incomplete; COPY indeed supports all listed operations. “None” is incorrect.
Common Pitfalls:Confusing COPY with DISKCOPY; forgetting to quote or escape special characters in filenames where required; overwriting files unintentionally without /-Y prompts in later variants.
Final Answer:All of the above