02-01-2010
A challenge could be to write a shell script that performs FP arithmetics.
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1. Shell Programming and Scripting
hi, :)
I have a file like this
10.456
123.567
456.876
234.987
........
.......
What i want to do is ia have to add all those numbers and put the result in some other file.
Any help pls.
cheers
RRK (8 Replies)
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2. Programming
Hi all!
Hi all!
I am working with a problem to find the smallest floating point number that can be represented.
I am going in a loop ,stating with an initial value of 1.0 and then diving it by 10 each time thru the loop.
So the first time I am getting o.1 which I wanted.But from the next... (4 Replies)
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3. Shell Programming and Scripting
Hello,
i have some variables say:
x=1.4
y=3.7
I wish to round off these values to :
x = 2 (after rounding off)
y = 4 (after rounding off)
I am stuck.
Please help. (7 Replies)
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4. Linux
Hi,
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5. Linux
Hi,
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6. Shell Programming and Scripting
Hi,
Could any one tell me how to compare to floating point no. using test command. As -eq option works on only intergers.
i=5.4
if
then
echo "equal"
else
echo "not equal"
fi
here output will be equal even though no. are unequal.
Thanks,
ravi (1 Reply)
Discussion started by: useless79
1 Replies
7. Programming
Anyone help me i cant found the error of floating point
if needed, i added the code complete
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
typedef struct
{
int hh;
int mm;
int ss;
char nom;
int punt;
}cancion;
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8. Shell Programming and Scripting
I am writing a script in zsh shell, it fetchs a number from a file using the awk command, store it as a variable, which in my case is a small number 0.62000. I want to change this number by multiplying it by 1000 to become 620.0 using the command in the script
var2=$((var1*1000))
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9. Shell Programming and Scripting
Hi,
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10. OS X (Apple)
Hi guys...
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LEARN ABOUT DEBIAN
ykchalresp
ykchalresp(1) General Commands Manual ykchalresp(1)
NAME
ykchalresp - Perform challenge-response operation with YubiKey
SYNOPSIS
ykchalresp [-1 | -2] [-H] [-Y] [-N] [-x] [-v] [-h]
OPTIONS
Send a challenge to a YubiKey, and read the response. The YubiKey can be configured with two different C/R modes -- the standard one is a
160 bits HMAC-SHA1, and the other is a YubiKey OTP mimicing mode, meaning two subsequent calls with the same challenge will result in dif-
ferent responses.
-1 send the challenge to slot 1. This is the default.
-2 send the challenge to slot 2.
-H send a 64 byte HMAC challenge. This is the default.
-Y send a 6 byte Yubico OTP challenge.
-N non-blocking mode -- abort if the YubiKey is configured to require a key press before sending the response.
-x challenge is hex encoded.
-v enable verbose mode.
EXAMPLE
The YubiKey challenge-response operation can be demonstrated using the NIST PUB 198 A.2 test vector.
First, program a YubiKey with the test vector :
$ ykpersonalize -2 -ochal-resp -ochal-hmac -ohmac-lt64 -a 303132333435363738393a3b3c3d3e3f40414243
...
Commit? (y/n) [n]: y
$
Now, send the NIST test challenge to the YubiKey and verify the result matches the expected :
$ ykchalresp -2 'Sample #2'
0922d3405faa3d194f82a45830737d5cc6c75d24
$
BUGS
Report ykchalresp bugs in the issue tracker <https://github.com/Yubico/yubikey-personalization/issues>
SEE ALSO
The ykpersonalize home page <http://code.google.com/p/yubikey-personalization/>
YubiKeys can be obtained from Yubico <http://www.yubico.com/>.
yubikey-personalization Febuary 2011 ykchalresp(1)