How do I use grep to grab prime number output from my factor program? Post: 302985145

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to grep / zgrep to output ONLY the matching filename and line number?

Hi all, I am trying to zgrep / grep list of files so that it displays only the matching filename:line number and does not display the whole line, like: (echo "1.txt";echo "2.txt") | xargs zgrep -no STRING If I use -o option, it displays the matching STRING and if not used, displays the...

2. Shell Programming and Scripting

Prime Number Program (Fun)

Hi, I was just wondering if anyone has, or knows where to download a prime number finder program. I would like a fairly simple bash program, and also I would like one that could take advantage of multiple processors. I have 500 cores I can use, and would like to take advantage of them using a...

3. UNIX for Dummies Questions & Answers

how to grep a number from output line

I`m having a output shown below, CFR 235,BBC DM-2 ALL CFR 111,BBC DM-2 ALL CFR 333,BBC DM-2 ALL from the above Output i want to use 235,111,333 as input for other purpose. these no always change every time i run script.so please suggest me the way i could do it with example,i have tried...

4. Shell Programming and Scripting

Perl Prime number help

Hello, I have some extra time at work and I'm trying to come up with a good prime number generator for very large numbers that can take advantage of multiple (hundreds) cores. I realize Perl may not be the best solution for this, any ideas? Thanks!

5. UNIX for Dummies Questions & Answers

Grab Portion of Output Text (sed, grep, awk?)

Alright, here's the deal. I'm running the following ruby script (output follows): >> /Users/name/bin/acweather.rb -z 54321 -o /Users/name/bin -c Clouds AND Sun 57/33 - Mostly sunny and cool I want to just grab the "57/33" portion, but that's it. I don't want any other portion of the line. I...

6. Shell Programming and Scripting

shell, read table and write the value for each factor to output

Hey guyz, I have a table like this: 1 A=#;B=#;C=# 2 A=#;C=#;D=#;E=#;E=# 3 B=#;B=#;B=#;D=# # are just some numbers. I want to have the output like this: * 1 2 3 A # # NA B # NA # C # # NA D NA # # E NA # NA So basically, I wanna know in each of the rows in my input (which...

7. Programming

Program wont print prime numbers

The problem I'm having is that when you put in the two numbers the answer is just prime.... nothing. I cannot figure this out ive been working on this forever, can someone please god just tell me how to fix this without encrypted "hints". #include <iostream> #include <cmath> using...

8. Shell Programming and Scripting

Help with ahem Prime number Generating Script

Can anybody tell me why the second part of this script (Sieve of Eratosthenes) isn't working properly. This isnt coursework or homework just private studies ( Yes Project Euler began it ) I know there are easier ways of doing this too but I want to do it this way.:p Iam using Cygwin on Vista...

9. UNIX for Dummies Questions & Answers

Grep SQL output file for greater than number.

Hi, This is my first post. I have a korn shell script which outputs a select statment to a file. There is only one column and one row which contains a record count of the select statement. The select statement looks something like this: SELECT COUNT(some_field) AS "count_value" ...

10. UNIX for Beginners Questions & Answers

How to output non-number lines with grep?

I want to check my data quality. I want to output the lines with non-number. I used the grep command: grep '' myfile.csv Since my file is csv file, I don't want to output the lines with comma. And I also don't want to output "." or space. But I still get the lines like the following:...

LEARN ABOUT SUNOS

factor

factor(1)							   User Commands							 factor(1)

NAME

       factor - obtain the prime factors of a number

SYNOPSIS

       factor [integer]

DESCRIPTION

       factor  writes to standard input all prime factors for any positive integer less than or equal to 10**14. The prime factors are written the
       proper number of times.

       If factor is used without an argument, it waits for an integer to be entered. After entry of the integer, it factors it, writes	its  prime
       factors the proper number of times, and then waits for another integer. factor exits if a 0 or any non-numeric character is entered.

       If factor is invoked with an argument (integer), it writes the integer, factors it and writes all the prime factors as described above, and
       then exits. If the argument is 0 or non-numeric, factor writes a 0 and then exits.

       The maximum time to factor an integer is proportional to sqrt(n), where n is the integer which is entered. factor will take this time  when
       n is prime or the square of a prime.

OPERANDS

       integer	       Any positive integer less than or equal to 10**14.

EXIT STATUS

       0	Successful completion.

       1	An error occurred.

DIAGNOSTICS

       factor prints the error message Ouch! for input out of range or for garbage input.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

SunOS 5.10							    31 Jan 1996 							 factor(1)