awk: division by zero Post: 302482152

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1. Shell Programming and Scripting

Division by zero error message in AWK

How can I modify my awk code to get rid of the divion by zero error message? If I run the script without an input file, it should return error message "Input file missing" but not divison by zero. Code: #!/bin/nawk -f BEGIN { if (NR == 0) {print "Input file...

2. Shell Programming and Scripting

awk Division and modulus

I need to read the file divide 3 column with 2nd and run a modulus of 10 and check whether the remainder is zero or not if not print the entire line. cat filename | awk '{ if ($3 / $2 % 10 != 0) print $0}' Whats wrong with it ?

3. Shell Programming and Scripting

awk error message: division by zero attempted

Hi, I'm executing unixbench tool v4.1 on an embedded system and I'm getting these error messages: Execl Throughput 1 2 3awk: /unixbench/unixbench-4.1.0/pgms/loops.awk:38: (FILENAME=- FNR=4) fatal: division by zero attempted Pipe Throughput 1 2 3 4 5 6 7 8 9 10awk:...

4. Shell Programming and Scripting

awk division error - 0

input 0 0 9820373 2069 0 0 11485482 awk '{print ($1/$3) / ($4/$7)}' input error Is there any way to fix this problem ?

5. Shell Programming and Scripting

Division problem -Awk

input one two three four 0 0 0 10424 0 102 0 15091 1 298 34 11111 0 10 0 1287 scripts awk 'NR>1{print ($1/$2) / ($3/$4)}' awk 'NR>1{ if ($1 ||$3 ||$2|| $4 == 0) print 0; else print (($1/$2)/($3/$4))}' error awk: division by zero input record number 1, file rm source line...

6. Shell Programming and Scripting

awk & division

vmstat|awk '{print $3}'|tail -1 returns 6250511, but what I need is 24416, which is 6250511 divided by 256. Please advise. Thank you so much

7. Shell Programming and Scripting

variables division with awk

hello i try to divide 2 variables in order to get a percentage--that's why i'm not interested in integer division--but nothing seems to work I think awk is suitable for this but i'm not quite sure how to use it.. any ideas? here's what I want to do: percentage = varA/varB thank you

8. Shell Programming and Scripting

awk - Division with condition

Hi Friends, I have an input file like this cat input chr1 100 200 1 2 chr1 120 130 na 1 chr1 140 160 1 na chr1 170 180 na na chr1 190 220 0 0 chr1 220 230 nd 1 chr2 330 400 1 nd chr2 410 450 nd nd chr3 500 700 1 1 I want to calculate the division of 4th and 5th columns. But, if...

9. Shell Programming and Scripting

awk Division By Zero Bypass

Hi Friends, I don't understand why "a" is always being printed as zero, when I execute the following command. awk '{if($6||$8||$10||$12==0)a=b=c=d=0;else (a=$5/$6);(b=$7/$8);(c=$9/$10);(d=$11/$12); {print...

10. Shell Programming and Scripting

awk - continue when encountered division error

Hello, How can I add a logic to awk to tell it to print 0 when encountering a division by zero attempted? Below is the code. Everything in the code works fine except the piece that I want to calculate read/write IO size. I take the kbr / rs and kbw / ws. There are times when the iostat data...

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head

HEAD(1) 								FSF								   HEAD(1)

NAME

       head - output the first part of files

SYNOPSIS

       head [OPTION]... [FILE]...

DESCRIPTION

       Print  first  10 lines of each FILE to standard output.	With more than one FILE, precede each with a header giving the file name.  With no
       FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --bytes=SIZE
	      print first SIZE bytes

       -n, --lines=NUMBER
	      print first NUMBER lines instead of first 10

       -q, --quiet, --silent
	      never print headers giving file names

       -v, --verbose
	      always print headers giving file names

       --help display this help and exit

       --version
	      output version information and exit

       SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full documentation for head is maintained as a Texinfo manual.  If the info and head programs are properly installed at your site, the
       command

	      info head

       should give you access to the complete manual.

head (coreutils) 4.5.3						   February 2003							   HEAD(1)