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          November 7, 2023 08:57 
        
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    lab10.os.2023
  
        
  
    
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  | mkdir folder1 | |
| echo > f1.txt | |
| echo > f2.txt | |
| ls folder1 | |
| cat f1.txt | |
| echo "Hello" >> f2.txt | |
| touch f1.txt | |
| rm f1.txt | |
| chmod u=w folder1 | |
| rm -r folder1 | 
  
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