printf Hexadecimal output


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting printf Hexadecimal output
# 1  
Old 12-10-2010
printf Hexadecimal output

Code:
printf "%X\n" "A"
41

printf "%X\n" "2"
2
Expected 32 (not 2).

Is there a "printf" which will output the hexadecimal value of a numeric character?
# 2  
Old 12-10-2010
Code:
$ printf "%d\n" 0xA
10

Code:
$ printf "%d\n" 0x20
32

Code:
$ printf "%X\n" 10
A

Code:
$ printf "%X\n" 32
20

# 3  
Old 12-10-2010
@Scrutinizer,

Methyl means the ascii code of the character "2" in hexadecimal, which should be 32.
# 4  
Old 12-10-2010
Quote:
Is there a "printf" which will output the hexadecimal value of a numeric character?
I think the question you meant to ask is
Quote:
Is there a "printf" which will output the hexadecimal value of a numeric character within a string?
If this is the correct question, then the answer is no.
# 5  
Old 12-10-2010
@Franklin: Oops...
Code:
$ printf "%X\n" \'A
41
$ printf "%X\n" \'2
32

These 2 Users Gave Thanks to Scrutinizer For This Post:
# 6  
Old 12-10-2010
Thanks Scrutinizer. It's just unbroken my script!

Just for interest I had been having a go at this post but expanding the problem to any character.

Convert clear text into binary

Last edited by methyl; 12-10-2010 at 11:35 AM..
# 7  
Old 12-10-2010
@Scrutinizer

Where is the \'[value] syntax documented for POSIX shells? I do not think I've seen it. Or more likely I ignored it....

For example:
Code:
echo $(( \'A  + 1 ))

fails in ksh88 on Solaris 10.

This does not:
Code:
> printf "%d\n" \'A
65

Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to use printf to output a shell variable path?

So I created two shell variables: COLUMN1_HEADING, COLUMN2_HEADING. They have values: COLUMN1_HEADING="John" COLUMN2_HEADING="123456789" How would I use printf to get it to print an output like this: $COLUMN1_HEADING\t$COLUMN2_HEADING\nJohn\t123456789\n Thanks! (3 Replies)
Discussion started by: steezuschrist96
3 Replies

2. Shell Programming and Scripting

Managing output... echo or printf?

Hello script guru's as i write more and more code i always block at managing output... either writing to standard out, writing to files via std out (log, temp file, etc). Don't get me wrong 99% of the time it DOES the job but maybe there is more efficient. I'm writing a small script to... (2 Replies)
Discussion started by: maverick72
2 Replies

3. Shell Programming and Scripting

Excel table like output with printf

Hi All; I try to create a excel like table with headers and some fields containing values, other long and complex mathematic formulas. I have some header like : Name Formula Value True/False Under name column, they are some formula names, formula column some long mathematic formulas... (9 Replies)
Discussion started by: reseki
9 Replies

4. Shell Programming and Scripting

Problems with awk printf, formatted output

Hi, i have a script, which is incomplete, am on my way developing it. Input 1,12,2012,IF_TB001 2,12,2012,3K3 3,Z56,00000,25,229,K900,00, ,3G3, ,USD, ,0000000000,000, , , , 550000000 3,Z56,00000,53,411,W225,00,000, , ,USD,OM170,0000000000,000, , , , -550000000 4,Z56,COUNT, 4,SUM LOC,... (19 Replies)
Discussion started by: selvankj
19 Replies

5. Shell Programming and Scripting

NAWK conversion of hexadecimal input to decimal output via printf, I am close I can feel it

I have searched and the answers I have found thus far have led me to this point, so I feel I am just about there. I am trying to convert a column of hexadecimal to decimal values so that I can filter out via grep just the data I want. I was able to pull my original 3 character hex value and... (10 Replies)
Discussion started by: PCGameGuy
10 Replies

6. Programming

capture the output of printf into another variable

Hi , I wonder if in java I can pipe the below output of the printf into a variable: System.out.printf(" This is a test %s\n", myVariable); I want to keep the output of the printf command to create my history array. Thanks. (2 Replies)
Discussion started by: arizah
2 Replies

7. Shell Programming and Scripting

How to format the output using float in awk{printf}

Hi I'm using awk to manipulate the data in the 6th field of the file xxx_yyy.hrv. The sample data that is available in this field is given below 220731.7100000000000000 When i tried using this command cat xxx_yyy.hrv | awk '{printf("%23.16f\n",$6*-1)}' I get the output as... (4 Replies)
Discussion started by: angelarosh
4 Replies

8. UNIX for Advanced & Expert Users

Help please...output problems with printf.

#include <stdio.h> #include <math.h> // this function calculates the volume of a Cylinder int main(void) { int r; // radius int h; // height double M_PI; // pi int pOne = pow (r, 2); // get user input of radius and height printf ("Enter your... (3 Replies)
Discussion started by: pwanda
3 Replies
Login or Register to Ask a Question