`tldr`[0] can be helpful for quick references like this. I never worry about commands like `ssh` anymore because of this. This is the output for `dd`: $ tldr d

`tldr`[0] can be helpful for quick references like this. I never worry about commands like `ssh` anymore because of this. This is the output for `dd`: $ tldr dd dd Convert and copy a file. - Make a bootable usb drive from an isohybrid file (such like archlinux-xxx .iso): dd if=file.iso of=/dev/usb_drive - Clone a drive to another drive with 4MB block and ignore error: dd if=/dev/source_drive of=/dev/dest_drive bs=4m conv=noerror - Generate a file of 100 random bytes by using kernel random driver: dd if=/dev/urandom of=random_file bs=100 count=1 - Benchmark the write performance of a disk: dd if=/dev/zero of=file_1GB bs=1024 count=1000000 [0]: https://github.com/tldr-pages/tldr https://github.com/tldr-pages/tldr