$size = 50GB $file = "C:\testfile_50GB.bin" $stream = [System.IO.File]::OpenWrite($file) $stream.SetLength($size) $stream.Close() Using dd (creates a 50 GB file of zero bytes):
yes "This is a 50 GB test file line." | head -c 50G > testfile_50GB.txt But that is impractical and rarely useful for technical testing. 50 gb test file
fallocate -l 50G testfile_50GB.bin Python (cross-platform) import os filename = "testfile_50GB.bin" size = 50 * 1024**3 # 50 GB in bytes $size = 50GB $file = "C:\testfile_50GB