Your latest bookmark from Email This How do I create a 1GB random file in Linux? 🔥 Save unlimited web pages along with a full PDF snapshot of each page. Unlock Premium → if= is not required, you can pipe something into dd instead: something... | dd of=sample.txt bs=1G count=1 It wouldn't be useful here since openssl rand requires specifying the number of bytes anyway. So you don't actually need dd – this would work: openssl rand -out sample.txt -base64 $(( 2**30 * 3/4 )) 1 gigabyte is usually 230 bytes (though you can use 10**9 for 109 bytes instead). The * 3/4 part accounts for Base64 overhead, making the encoded output 1 GB. Alternatively, you could use /dev/urandom, but it would be a little slower than OpenSSL: dd if=/dev/urandom of=sample.txt bs=1G count=1 Personally, I would use bs=64M count=16 or similar: dd if=/dev/urandom of=sample.txt bs=64M count=16 Source: https://superuser.com/questions/470949/how-do-i-create-a-1gb-random-file-in-linux/470957#470957 This web page was saved on Wednesday, Oct 21 2020. Upgrade to Premium Plan ✔ Save unlimited bookmarks. ✔ Get a complete PDF copy of each web page ✔ Save PDFs, DOCX files, images and Excel sheets as email attachments. ✔ Get priority support and access to latest features. Upgrade now → © Email This