LPI
010-160 · Question #57
Why is the file data.txt empty after executing sort data.txt > data.txt?
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The Power of the Command Line
Question
Why is the file data.txt empty after executing sort data.txt > data.txt?
Options
- ABecause, if data.txt is empty now, it must have been empty before.
- BBecause sort cannot sort text files, only binary files.
- CBecause sort detects that both files are the same.
- DBecause the file gets truncated before sort is executed.
- EBecause the file is locked and cannot be written to.
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Topics
#shell redirection#output redirection#file truncation#sort command