Create Binary files in UNIX

Question

This question was out there for a while and I thought I should offer some bonus points if I can get it to work.

What did I do…

Recently at work, I wrote a par

Answer 1

You can use xxd to convert to and from binary files / hexdumps quite simply.

data to hex

echo  Hello | xxd -p 
48656c6c6f0a

hex to data

echo 48656c6c6f0a | xxd -r -p
Hello

or

echo 48 65 6c 6c 6f 0a | xxd -r -p
Hello

The -p is postscript mode which allows for a more freeform input

This is the output from xxd -r -p text where text is the data you give above

==▒sGTP▒▒U<▒I▒▒▒΁/▒▒3▒▒▒▒▒▒▒▒▒bTY`84▒
                                     Xbp`▒▒▒▒▒▒▒|▒L▒@@(▒▒U8▒+#POC01
:▒ިv▒b▒▒▒▒TY`84Ud▒▒▒▒>▒▒▒▒▒▒▒!▒
blackberrynet▒/▒▒!
M
▒▒!
N
▒▒#Oripassword▒▒΁/▒▒΁/▒▒Xbp`▒@@(▒▒U8▒IvPOC01
:qU▒b▒▒▒▒▒▒TY`84U▒▒▒*:▒▒!
▒k▒▒▒#O Welcmme!
▒!
M