as you can see there is a delimiter after c8 "::". Awk sees the rest as fields because it doesn't recognize spaces and tabs as delimiters. So i am basically looking to isolate 20030003ba13f6cc. Can anyone help?
c8::20030003ba13f6cc disk connected configured unknown (2 Replies)
i have a several million line file like this:
M:charitygeneral:water:fairbanks:charitygeneral
field 2 and field 5 are the same
i want to read the file and rot13 or any caesar cipher field 2 and replace the with a random number 1 - 9
anyone know how to do this?
something slightly... (8 Replies)
Hello all, I'm working on an attendance callout script for a school district. I need to change our current layout for the vendor. Currently the data is in the form of:
studentid,period,building,
Heres a sample of some made up records:
500,1,30,
500,2,30,
500,3,30,
500,6,30,... (7 Replies)
Hallo
I have maybe a little bit advanced request....
I need to choose one random part betwen %....
so i have this..
%
text1 text1 text1
text1 text1 text1
text1 text1 text1
%
text2 text2
text2 text2 text2
%
text3 text3 text3
tetx3
%
this choose text between %
awk ' /%/... (8 Replies)
Hi - I have a word GTTCAGAGTTCTACAGTCCGACGAT
I need to extract all the possible "chunks" of 7 or above letter "words" from this.
SO, my out put should be
GTTCAGA
TTCAGAG
TCAGAGT
CAGAGTTCT
TCCGACGAT
CAGTCCGACG
etc.
How can I do that with awk or any other language? I have no... (2 Replies)
Hi
I am new to expect. Please if any one can help on my issue its really appreciable. here is my issue:
I want expect script for random passwords and random commands generation.
please can anyone help me?
Many Thanks in advance (0 Replies)
Hi, I have a small piece of awk code (see below) that generates random numbers.
gawk -F"," 'BEGIN { srand(); for (i = 1; i <= 30; i++) printf("%s AM329_%04d\n",$0,int(36 * rand())+1) }' OFS=, AM329_hole_names.csv
The code works fine and generates alphanumeric numbers like AM329_0001,... (2 Replies)
Need to use dd to generate a large file from a sample file of random data. This is because I don't have /dev/urandom.
I create a named pipe then:
dd if=mynamed.fifo do=myfile.fifo bs=1024 count=1024
but when I cat a file to the fifo that's 1024 random bytes:
cat randomfile.txt >... (7 Replies)
Dear UNIX Friends,
I was wondering if there is a random RGB color generator or any function in any unix platforms.
Please share your ideas.
Thanks (2 Replies)
Discussion started by: jacobs.smith
2 Replies
LEARN ABOUT OPENSOLARIS
srand
rand(3C) Standard C Library Functions rand(3C)NAME
rand, srand, rand_r - simple random-number generator
SYNOPSIS
#include <stdlib.h>
int rand(void);
void srand(unsigned int seed);
int rand_r(unsigned int *seed);
DESCRIPTION
The rand() function uses a multiplicative congruential random-number generator with period 2^32 that returns successive pseudo-random num-
bers in the range of 0 to RAND_MAX (defined in <stdlib.h>).
The srand() function uses the argument seed as a seed for a new sequence of pseudo-random numbers to be returned by subsequent calls to
rand(). If srand() is then called with the same seed value, the sequence of pseudo-random numbers will be repeated. If rand() is called
before any calls to srand() have been made, the same sequence will be generated as when srand() is first called with a seed value of 1.
The rand_r() function has the same functionality as rand() except that a pointer to a seed seed must be supplied by the caller. If
rand_r() is called with the same initial value for the object pointed to by seed and that object is not modified between successive calls
to rand_r(), the same sequence as that produced by calls to rand() will be generated.
The rand() and srand() functions provide per-process pseudo-random streams shared by all threads. The same effect can be achieved if all
threads call rand_r() with a pointer to the same seed object. The rand_r() function allows a thread to generate a private pseudo-random
stream by having the seed object be private to the thread.
USAGE
The spectral properties of rand() are limited. The drand48(3C) function provides a better, more elaborate random-number generator.
When compiling multithreaded applications, the _REENTRANT flag must be defined on the compile line. This flag should be used only in mul-
tithreaded applications.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Safe |
+-----------------------------+-----------------------------+
SEE ALSO drand48(3C), attributes(5), standards(5)SunOS 5.11 19 May 2004 rand(3C)