12-24-2010
some of the lines are actually 0.22 or some thing. I'm still getting the same error
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1. Shell Programming and Scripting
Hi ,
I have file :
after i run this command :
there are error
can we print blank line if output error ??
thanks.. ^^ (4 Replies)
Discussion started by: justbow
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2. Shell Programming and Scripting
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... (4 Replies)
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3. Shell Programming and Scripting
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:... (3 Replies)
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4. UNIX for Advanced & Expert Users
I received error "awk: division by zero" while executing the following statement.
SunOS 5.10 Generic_142900-15 sun4us sparc FJSV,GPUZC-M
echo 8 | awk 'END {printf ("%d\n",NR/$1 + 0.5);}' file1.lst
awk: division by zero
Can someone provide solution?
Thanks
Please use code... (11 Replies)
Discussion started by: kumar77
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5. Shell Programming and Scripting
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... (9 Replies)
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6. Shell Programming and Scripting
vmstat|awk '{print $3}'|tail -1
returns 6250511, but what I need is 24416, which is 6250511 divided by 256.
Please advise.
Thank you so much (2 Replies)
Discussion started by: Daniel Gate
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7. Shell Programming and Scripting
hello
i try to divide 2 variables in order to get a percentage--that's why i'm not interested in integer division--but nothing seems to work
I think awk is suitable for this but i'm not quite sure how to use it..
any ideas?
here's what I want to do:
percentage = varA/varB
thank you (2 Replies)
Discussion started by: vlm
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8. Shell Programming and Scripting
Hi Friends,
I have an input file like this
cat input
chr1 100 200 1 2
chr1 120 130 na 1
chr1 140 160 1 na
chr1 170 180 na na
chr1 190 220 0 0
chr1 220 230 nd 1
chr2 330 400 1 nd
chr2 410 450 nd nd
chr3 500 700 1 1
I want to calculate the division of 4th and 5th columns. But, if... (3 Replies)
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9. Shell Programming and Scripting
Hi Friends,
I don't understand why "a" is always being printed as zero, when I execute the following command.
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10. Shell Programming and Scripting
Hello,
How can I add a logic to awk to tell it to print 0 when encountering a division by zero attempted? Below is the code. Everything in the code works fine except the piece that I want to calculate read/write IO size. I take the kbr / rs and kbw / ws. There are times when the iostat data... (5 Replies)
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LEARN ABOUT DEBIAN
check::isa
Check::ISA(3pm) User Contributed Perl Documentation Check::ISA(3pm)
NAME
Check::ISA - DWIM, correct checking of an object's class
SYNOPSIS
use Check::ISA;
if ( obj($foo, "SomeClass") ) {
$foo->some_method;
}
# instead of one of these methods:
UNIVERSAL::isa($foo, "SomeClass") # WRONG
ref $obj eq "SomeClass"; # VERY WRONG
$foo->isa("SomeClass") # May die
local $@; eval { $foo->isa("SomeClass") } # too long
DESCRIPTION
This module provides several functions to assist in testing whether a value is an object, and if so asking about its class.
FUNCTIONS
obj $thing, [ $class ]
This function tests if $thing is an object.
If $class is provided, it also tests tests whether "$thing->isa($class)".
$thing is considered an object if it's blessed, or if it's a "GLOB" with a valid "IO" slot (the "IO" slot contains a FileHandle object
which is the actual invocant). This corresponds directly to "gv_fetchmethod".
obj_does $thing, [ $class_or_role ]
Just like "obj" but uses "DOES" in UNIVERSAL instead of "isa" in UNIVERSAL.
"DOES" in UNIVERSAL is just like "isa", except it's use is encouraged to query about an interface, as opposed to the object structure.
If "DOES" is not overridden by th ebject, calling it is semantically identical to calling "isa".
This is probably reccomended over "obj" for interoperability, but can be slower on Perls before 5.10.
Note that "DOES" in UNIVERSAL
inv $thing, [ $class_or_role ]
Just like "obj_does", but also returns true for classes.
Note that this method is slower, but is supposed to return true for any value you can call methods on (class, object, filehandle, etc).
Look into autobox if you would like to be able to call methods on all values.
obj_can $thing, $method
inv_can $thing, $method
Checks if $thing is an object or class, and calls "can" on $thing if appropriate.
SEE ALSO
UNIVERSAL, Params::Util, autobox, Moose, asa
VERSION CONTROL
This module is maintained using Darcs. You can get the latest version from <http://nothingmuch.woobling.org/code>, and use "darcs send" to
commit changes.
AUTHOR
Yuval Kogman <nothingmuch@woobling.org>
COPYRIGHT
Copyright (c) 2008 Yuval Kogman. All rights reserved
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
perl v5.10.0 2008-07-25 Check::ISA(3pm)