In a Linux console when a C program asks for a string (i.e. username) how can I insert non-printable chars?
I search something better then
printf 'x48x83xc4x50x48xbfx3d...etc' | ./myProgram.bin
or
./myProgram.bin < dataFile
I prefer to type chars when needed but I don't know how to write non-printable ones.
Thank you