Menu
I'm trying to convert "Hello" to 48 65 6c 6c 6f in hexadecimal as efficiently as possible using the command line.
I've tried looking at printf and google, but I can't get anywhere.
Any help greatly appreciated.
Many thanks in advance,
880
The most common way to convert ASCII text to hexadecimal numbers manually is to first look up the decimal number for the letter in the ASCII table. Then, convert this decimal value to its hexadecimal equivalent. Also you might find a conversion table that directly converts ASCII to hexadecimal.
Use xxd as a filter within an editor such as vim(1) to hexdump a region marked between 'a' and 'z'. Use xxd as a filter within an editor such as vim(1) to recover a binary hexdump marked between 'a' and 'z'.
The command option -r converts the Hex characters to ASCII and command option -p prints the outcome in plain text. The final echo command produces a newline on the Linux terminal. If you wish to convert the Hex characters to ASCII characters from a file, use the cat command and pipe the file to xxd command.
Python hex() function is used to convert an integer to a lowercase hexadecimal string prefixed with “0x”. We can also pass an object to hex() function, in that case the object must have __index__() function defined that returns integer. The input integer argument can be in any base such as binary, octal etc.
echo -n "Hello" | od -A n -t x1 Explanation:
echo program will provide the string to the next command.-n flag tells echo to not generate a new line at the end of the "Hello".od program is the "octal dump" program. (We will be providing a flag to tell it to dump it in hexadecimal instead of octal.)-A n flag is short for --address-radix=n, with n being short for "none". Without this part, the command would output an ugly numerical address prefix on the left side. This is useful for large dumps, but for a short string it is unnecessary.-t x1 flag is short for --format=x1, with the x being short for "hexadecimal" and the 1 meaning 1 byte.
164
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
