I'm new at scripting but I thought I was getting pretty good at it. I've hit a snag. I try to use expr to compute a fraction say: expr 3 / 4, and I'm getting zero. I guess it's just truncating to the integer, in this case 0, but I need the decimal 0.75. What can I do to compute this value in... (2 Replies)
hi i have a script that is taking the difference of multiple columns in a file from a value from a single row..so far i have a loop to do that.. all the data is floating point..fin has the difference between array1 and array2..array1 has 700 x 300= 210000 values and array2 has 700 values..
... (11 Replies)
Friends,
I have a file with contents like:
interface Serial0/4/0/0/1/1/1/1:0
encapsulation mfr
multilink
group 101
Now I need to manipulate the file in such a way that to all the numbers less than 163, 63 gets added and to all numbers greater than 163, 63 gets deducted.(The numbers... (2 Replies)
HI
i have following problem,
i need to use split command to split files each should be cca 700 lines but i dont know how to inplement it in the scripts becasuse each time the origin file will be various size ,
any body got any idea
cheers (2 Replies)
Hi,
I have data in the following form:
AB001 10
AB002 9
AB003 9
etc
AB200 5
What I need to do is sum up the second value according to groups of the first, i.e. AB001 to AB030 the total being X, AB031 to AB050 the total being Y etc (there are 5 AB ranges of different sizes). I'm sure... (3 Replies)
Hi,
I need a help with arithmetic calculations in my script. I have two variables: a=17; b=1712
I want to perform ($a/$b)*100 with two decimals in the result.
I tried with following:
res=$((100*a/b))
res=`echo "scale=2; $a / $b" | bc`
But I am not getting the decimal values.... (4 Replies)
I am using bash
I have a script that takes a number, i.e. 85.152, which is always a non integer and essentially tries to get that number to be a multiple of 10. My code is as follows:
number=85.152
A=${number%.*} #Converts float to integer
typeset -i B=$(((A-20)/10)) #subtracting 20 is... (12 Replies)
I found the following issue by simply increasing a variable. The ((A++)) expression returns an error, the other expressions both return 0. Does anyone know why?
script.sh:
#! /bin/bash
A=0
B=0
C=0
((A++)) ; echo "${?}"
((B=B+1)) ; echo "${?}"
((C+=1))... (8 Replies)
I need to divide the number of white spaces by total number of characters in a file using bash. I am able to get the number of white spaces correctly using:
tr -cd < afile | wc -c
I am also able to get the total number of characters using:
wc -c afile
How do I divide the first... (2 Replies)
Perl::Critic::Policy::ControlStructures::ProhibitLabelsWUserpContPerl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames(3pm)NAME
Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames - Don't use labels that are the same as the special block
names.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
When using one of the special Perl blocks "BEGIN", "END", "CHECK", "INIT", and "UNITCHECK", it is easy to mistakenly add a colon to the end
of the block name. E.g.:
# a BEGIN block that gets executed at compile time.
BEGIN { <...code...> }
# an ordinary labeled block that gets executed at run time.
BEGIN: { <...code...> }
The labels "BEGIN:", "END:", etc. are probably errors. This policy prohibits the special Perl block names from being used as labels.
CONFIGURATION
This Policy is not configurable except for the standard options.
SEE ALSO
The Perl Buzz article on this issue at http://perlbuzz.com/2008/05/colons-invalidate-your-begin-and-end-blocks.html
<http://perlbuzz.com/2008/05/colons-invalidate-your-begin-and-end-blocks.html>.
ACKNOWLEDGMENT
Randy Lauen for identifying the problem.
AUTHOR
Mike O'Regan
COPYRIGHT
Copyright (c) 2008-2011 Mike O'Regan. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames(3pm)