Sponsored Content
Full Discussion: AWK help please - beginner
Top Forums UNIX for Dummies Questions & Answers AWK help please - beginner Post 302120937 by jim mcnamara on Sunday 10th of June 2007 02:46:16 PM
Old 06-10-2007
Code:
{if ($2 == "M"){  if the second fiedl is "M"
s=s+$3           add the value stored in s to the value in the third column, store sum in s
n=n+1            add one to the count of records
}END{
print s, n, s/n, "avg height"  When done with file: print sum, count, sum divided by count, the literal "avg height"
}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Please help. I am a beginner.

Alrigt, I need to write a shell script where it counts the number of folders and files and dispays "My home directory has 'x' files and 'y' directories." So, I was thinking of doing this. set x = `ls | wc` so, if I have 8 files and folders in my home directory, x is not 8. now, I was... (1 Reply)
Discussion started by: Lykathea Aflame
1 Replies

2. Programming

Beginner C

Anyone know where I can get started in C++ programming in unix? Any good free tutorials or websites to start at? I am okay in unix scripting but have never done c programming of any sort... What are the main advantages of using C++ ? (2 Replies)
Discussion started by: frustrated1
2 Replies

3. UNIX for Dummies Questions & Answers

Beginner Help

hi guys, i have a DEl xps laptop cor 2 duo 2.2 i have vista installed on it i want to install a dual Boot UNIX on it.. can some one guide me ...cause i m tottaly new to UNIX i want to install unix on that laptop along with Vista.... thx any help would be deeply appreciated (sorry if i... (5 Replies)
Discussion started by: Farhan082
5 Replies

4. Shell Programming and Scripting

Beginner Help

I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
Discussion started by: thibodeau
5 Replies

5. UNIX for Dummies Questions & Answers

Beginner - What Should I Do First?

Hi people.... I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
Discussion started by: amit.kanade1983
3 Replies

6. Shell Programming and Scripting

Beginner looking for help

Hello, I am trying to write a script that reads names from a file called input, removes names if they have the same letter next to each other and prints the others. e.g. Colin & John would be printed Garry & Lynn would be removed My thinking is that I read in each name and... (3 Replies)
Discussion started by: colinireland
3 Replies

7. Shell Programming and Scripting

""Help Me!""Beginner awk learning issue

Hi All, I have just now started learning awk from the source - Awk - A Tutorial and Introduction - by Bruce Barnett and the bad part is that I am stuck on the very first example for running the awk script. The script is as - #!/bin/sh # Linux users have to change $8 to $9 awk ' BEGIN ... (6 Replies)
Discussion started by: csrohit
6 Replies

8. Shell Programming and Scripting

AWK for a beginner

I am going to learn AWK for Pattern search (extracting strings ) related activities. I think that is what AWK is used for anyway. What book/similair resource would you suggest for a beginner ? (4 Replies)
Discussion started by: omega3
4 Replies

9. UNIX for Dummies Questions & Answers

awk Help - Beginner

Hi, I think I need to use AWK - however I have no experience of it. Can someone help please? I have a file like this but with many more records - it is fixed width THIS15021X 799999 XX 00000099999 00008888888 XX 15022013 THISQ15021X 999999 XX 00000099999... (7 Replies)
Discussion started by: mcclunyboy
7 Replies

10. Red Hat

Help me please i am beginner

i have windows 8 host on Dell Laptop vmware 9 redhat 7.2 iso downloaded through redhat official site after installation on vm it only boots into text dont show graphics Please guide:( (1 Reply)
Discussion started by: hananabbas
1 Replies
NUMSUM(1)						User Contributed Perl Documentation						 NUMSUM(1)

NAME
numsum - numsum program file SYNOPSIS
numsum [-iIcdhrsvxy] <FILE> | numsum [-iIcdhrsvxy] (Input on STDIN from pipeline.) numsum [-iIcdhrsvxy] (Input on STDIN. Use Ctrl-D to stop.) DESCRIPTION
numsum will take all the numbers on stdin and return the sum of those numbers. Currently it only processes the first number on each line. Besides positive numbers, it also handles negative numbers and numbers with decimals. OPTIONS
-i Only return the integer portion of the final sum. -I Only return the decimal portion of the final sum. -c Print out the sum of each column. -r Print out the sum of each row. -x <n> Specify a comma seperated list of columns to print. -y <n> Specify a comma seperated list of rows to print. -s <string> Specify a string to use as a seperator for columns. This defaults to be consecutive whitespace (s+). -h Help: You're looking at it. -V Increase verbosity. -d Debug mode. For developers -q Quiet mode, don't print any warnings. EXAMPLES
Simply add up the numbers in a file. $ numsum numbers.txt 4315 Enter your own numbers on STDIN. The last number is the answer. $ numsum 4 21 98 100 223 Use it in a command pipeline. $ ls -1s | grep .mp3 | numsum -c -x 5 72288 Add up the total byte count in a http log file. $ cat access_log | awk {'print $10'} numsum or numsum -c -x 10 access_log Add up the columns of numbers of a file. $ cat columns 1 6 11 16 21 2 7 12 17 22 3 8 13 18 23 4 9 14 19 24 5 10 15 20 25 $ numsum -c columns 15 40 65 90 115 Add up the 1st, 2nd and 5th columns only. $ numsum -c -x 1,2,5 columns 15 40 115 Add up the rows of numbers of a file. $ numsum -r columns 55 60 65 70 75 Add up the 2nd and 4th rows. $ numsum -r -y 2,4 columns 60 70 SEE ALSO
numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numrandom(1), numrange(1), numround(1) COPYRIGHT
numsum is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license. Please read the COPYING and LICENSE files that came with the num-utils package Developers can read the GOALS file and contact me about providing submitions or help for the project. MORE INFO
More info on numsum can be found at: http://suso.suso.org/programs/num-utils/ perl v5.10.1 2009-10-31 NUMSUM(1)
All times are GMT -4. The time now is 03:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy