How to view files in binary from bash?
I would like to view the contents of a file in the current directory, but in binary from the command line. How can I achieve this? 13 Answers 13
binary
How to convert ‘binary string’ to normal string in Python3?
For example, I have a string like this(return value of subprocess.check_output): >>> b’a string’ b’a string’ Whatever I did to it, it is always printed with the annoying b’ before the string: >>> print(b’a string’) b’a string’ >>> print(str(b’a string’)) b’a string’ Does anyone have any ideas about how to use it as a normal … Read more
How do you express binary literals in Python?
How do you express an integer as a binary number with Python literals? I was easily able to find the answer for hex: >>> 0x12AF 4783 >>> 0x100 256 and octal: >>> 01267 695 >>> 0100 64 How do you use literals to express binary in Python? Summary of Answers Python 2.5 and earlier: can … Read more
Why do we use Base64?
Wikipedia says Base64 encoding schemes are commonly used when there is a need to encode binary data that needs be stored and transferred over media that are designed to deal with textual data. This is to ensure that the data remains intact without modification during transport. But is it not that data is always stored/transmitted … Read more
Reading binary file and looping over each byte
In Python, how do I read in a binary file and loop over each byte of that file? 13 Answers 13
What is “2’s Complement”?
I’m in a computer systems course and have been struggling, in part, with Two’s Complement. I want to understand it but everything I’ve read hasn’t brought the picture together for me. I’ve read the wikipedia article and various other articles, including my text book. Hence, I wanted to start this community wiki post to define … Read more
Python int to binary string?
Are there any canned Python methods to convert an Integer (or Long) into a binary string in Python? There are a myriad of dec2bin() functions out on Google… But I was hoping I could use a built-in function / library. 36 s 36
How to count the number of set bits in a 32-bit integer?
8 bits representing the number 7 look like this: 00000111 Three bits are set. What are algorithms to determine the number of set bits in a 32-bit integer? 63 s 63
What does the ‘b’ character do in front of a string literal?
Apparently, the following is the valid syntax: b’The string’ I would like to know: What does this b character in front of the string mean? What are the effects of using it? What are appropriate situations to use it? I found a related question right here on SO, but that question is about PHP though, … Read more
How to convert a Binary String to a base 10 integer in Java
How to convert a Binary String to a base 10 integer in Java
