Some awesome Unix / Linux commands
How to open binary file in "vi" in hex mode $ vi test.dat then in vi command mode type ( this may take few seconds) :%!xxd if you need to exit type :%!xxd -r dd command: To backup the entire hard disk: $ dd if = /dev/sda of = /dev/sdb if is the Input file of is the output file To copy testfile.dat file to small_testfile.dat $ dd if=testfile.dat of=small_testfile.dat bs=1000 count=1 if is the Input file of is the output file bs number of byes/blocks copied <count> number of times i.e 1 How to open home directly on Windows Subsystem for Linux ? $ explorer.exe . Don't leave out the "."