Sponsored Content
Top Forums Shell Programming and Scripting File Size calculation with AWK Post 302350625 by jim mcnamara on Friday 4th of September 2009 11:04:38 AM
Old 09-04-2009
I cannot tell what is going on BUT - awk uses double precision arithmetic. It supports number up to 10^308 on your system:
Code:
> file `which awk`
/usr/xpg4/bin/awk:      ELF 32-bit MSB executable SPARC Version 1, dynamically linked, stripped
> echo "12345678910 12345678910" | awk '{sum=$1; sum+=$2; print sum}'
24691357820
> echo "12345678910 12345678910" | nawk '{sum=$1; sum+=$2; print sum}'
24691357820

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk an file size

I have been using x=ls -la "$f" | awk '{print $5}' This allows me to the size of all the files in $f and echo $x later . The only problem is instead of protecting the file size format of ls -la which is right to left, it rearranges it and reads it left to right. Cyborg was kind... (1 Reply)
Discussion started by: chrchcol
1 Replies

2. Shell Programming and Scripting

awk calculation

Hallo all, I have a script which creates an output ... see below: root@a7germ:/tmp/pax > cat 20061117.txt 523.047 521.273 521.034 517.367 516.553 517.793 513.114 513.940 I would like to use awk to calculate the (a)total sum of the numbers (b) The average of the numbers. Please... (4 Replies)
Discussion started by: kekanap
4 Replies

3. Shell Programming and Scripting

Partitioning script for rescue mode (disk size calculation)

Hello! I need to write partitioning script wich would work in rescue mode. It will prepare partitions and unpack linux on it. However I need to calculate whole size of the disk and create: /dev/sda1 --> One big partition (minus (2*size of memory) for swap) /dev/sda2 --> Swap partition... (1 Reply)
Discussion started by: pug123
1 Replies

4. Shell Programming and Scripting

awk calculation problem

I have a list of coordinate data, sampled below. 54555209 784672723 I want it as: 545552.09 7846727.23 Below is my script: BEGIN {FS= " "; OFS= ","} {print $1*.01,$2*.01} This is my outcome: 5.5e7 7.8e8 How do I tell awk that I want to keep all the digits instead of outputting... (1 Reply)
Discussion started by: ndnkyd
1 Replies

5. Shell Programming and Scripting

awk file size limit

My code is awk '{ out=split(FILENAME,a,"/") sub(/\./,"_",a) sub(/\-/,"_",a) NEWSTRING="main_"a"_"a"(" # The word we want to insert gsub(/main\(/,NEWSTRING); # the word to be replaced print "Main becomes ",NEWSTRING")","in file ",FILENAME >> "/home/ds2/test/NEW2.txt" ... (4 Replies)
Discussion started by: senior_ahmed
4 Replies

6. Programming

arithmetic calculation using awk

hi there again, i need to do a simple division with my data with a number of rows. i think i wanted to have a simple output like this one: col1 col2 col3 val1 val2 val1/val2 valn valm valn/valm any suggestion is very much appreciated. thanks much. (2 Replies)
Discussion started by: ida1215
2 Replies

7. Shell Programming and Scripting

Size calculation MB to GB

pcmpath query device |awk 'BEGIN{print "TYPE\tDEVICE NAME\tSERIAL\tSIZE\tHOSTNAME"} /DEVICE/ { disk=$5 printf "%s\t", $7 printf "%s\t", disk getline; printf "%s\t", substr($2, length($2)-3) ("bootinfo -s " disk) | getline; printf... (3 Replies)
Discussion started by: Daniel Gate
3 Replies

8. Shell Programming and Scripting

awk split and awk calculation in the same command

I am trying to run the awk below. My question is when I split the input, then run anotherawk to perform a calculation using that splitas the input there are no issues. When I try to combine them the output is not correct, is the split not working or did I do it wrong? Thank you :). input ... (8 Replies)
Discussion started by: cmccabe
8 Replies

9. Shell Programming and Scripting

awk calculation with zero as N/A

In the below awk, I am trying to calculate percent for a given id. It is very close the problem is when the # being used in the calculation is zero. I am not sure how to code this condition into the awk as it happens frequently. The portion in italics was an attempt but that lead to an error. Thank... (13 Replies)
Discussion started by: cmccabe
13 Replies

10. Shell Programming and Scripting

Help with awk percentage calculation from a file

i have a file say test with the below mentioned details Folder Name Total space Space used /test/test1 500.1GB 112.0 GB /test/test2 3.2 TB 5TB /test/test3 3TB 100GB i need to calculate percentage of each row based on total space and space used and copy... (9 Replies)
Discussion started by: venkitesh
9 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 10:15 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy