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anikolaienko/generate_random_content_large_file.md

Last active January 21, 2022 10:38
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Bash: Generate random content large file
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generate_random_content_large_file.md

Size:

  • 2**10 - 1 KB
  • 2**20 - 1 MB
  • 2**30 - 1 GB

1) Using openssl util

use -base64 flag to generate readable content

openssl rand -out sample.txt $(( 2**25 ))

2) Using built-in '/dev/urandom' preudorandom string generator

dd if=/dev/urandom of=sample1.txt bs=$(( 2**25 )) count=1
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