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$
22 lines
637 B
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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## How to create dummy files with a specific size using the "dd" command:
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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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dd if=/dev/zero of=file_name.txt bs=1024k count=10
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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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