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What does the cat command do when used without any options?

easy📝 Conceptual Q1 of 15
Linux CLI - Viewing and Editing Files
What does the cat command do when used without any options?
AChanges file permissions
BDeletes a file
CCreates a new directory
DDisplays the contents of a file on the screen
Step-by-Step Solution
Solution:

  1. Step 1: Understand the basic function of cat

    The cat command is used to read and display file contents in Linux.

  2. Step 2: Identify the default behavior without options

    Without any options, cat simply outputs the content of the specified file to the terminal.

  3. Final Answer:

    Displays the contents of a file on the screen -> Option D

  4. Quick Check:

    Basic cat usage = Display file contents [OK]
Quick Trick: Use cat filename to quickly see file contents [OK]
Common Mistakes:
  • Thinking cat deletes files
  • Confusing cat with directory commands
  • Assuming cat changes permissions

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