first command creates file with size of 10MB and not 1MB :~/prashant/test$ dd if=/dev/zero of=file_name.txt bs=1024k count=10 10+0 records in 10+0 records out 10485760 bytes (10 MB, 10 MiB) copied, 0.00991439 s, 1.1 GB/s :~/prashant/test$ du -h file_name.txt 10M file_name.txt :~/prashant/test$
		
			
				
	
	
		
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			Markdown
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			637 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| title: Create a dummy file with a specific size
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| ---
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| 
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| ## How to create dummy files with a specific size using the "dd" command:
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| 
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| The "dd" command can be used to create a file of a specific size. This is useful if you would like to test download speeds, or any other tests, and need a file of a specific size.
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| 
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| ```
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| dd if=/dev/zero of=file_name.txt bs=1024k count=10
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| ```
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| 
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| This will create a file of 10MB called file_name.txt.
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| bs is your byte size and count represent the number of blocks. An easy way to look at is 1024K X 10.
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| Here is an even simpler way to create a 1MB file:
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| ```
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| dd if=/dev/zero of=file_name.txt bs=1MB count=1
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| ```
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