Answer by mikeserv for Why does dd from /dev/random give different file sizes?
dd is designed for blocking - it is usually the best tool at your disposal for reading from variable sized inputs if you need it done immediately because dd will not buffer current reads into some...
View ArticleAnswer by Gilles 'SO- stop being evil' for Why does dd from /dev/random give...
You're observing a combination of the peculiar behavior of dd with the peculiar behavior of Linux's /dev/random. Both, by the way, are rarely the right tool for the job.Linux's /dev/random returns data...
View ArticleAnswer by Peter.O for Why does dd from /dev/random give different file sizes?
Why does dd drop data? ... Gilles has posed this engaging question about dd:When is dd suitable for copying data? (or, when are read() and write() partial)Here is an excerpt from that question:...
View ArticleAnswer by user732 for Why does dd from /dev/random give different file sizes?
From man 4 random on a RHEL 5 box:When read, the /dev/random device will only return random bytes within the estimated number of bits of noise in the entropy pool.I get files of size 213 bytes on that...
View ArticleWhy does dd from /dev/random give different file sizes?
I am running the following command on an ubuntu system:dd if=/dev/random of=rand bs=1K count=2However, every time I run it, I end up with a file of a different size. Why is this? How can I generate a...
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