Sponsored Content
Top Forums Shell Programming and Scripting echo multiple variable with calculation Post 302503589 by alvin0618 on Friday 11th of March 2011 02:52:02 AM
Old 03-11-2011
Quote:
Originally Posted by homeboy
Code:
{
  8    echo "scale=2; $val1*100/$total" | bc
  9    echo "scale=2; $val2*100*100/$total" | bc
 10    echo "scale=2; $val3*100/$total" | bc
 11 } | tr "\n" ',' | sed 's/,$/\n/'

May i know why got curly bracket?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Display from a variable using echo.

I have a variable that is outputting a lot of space. here has been 45 lines returned ... how can I remove the spaces between the "been and the 45" CODE: fil_len=`wc -l < coshb.txt` if ; then cat coshb.txt | more echo " " echo "There has been ${fil_len} lines... (4 Replies)
Discussion started by: jagannatha
4 Replies

2. Shell Programming and Scripting

echo variable problem

hi I have say five variable. I would ask the user which one they want me to print and then print accordingly. TEST_1='10.2.3.4' TEST_2='11.2.3.5' TEST_3='12.2.3.5' TEST_4='13.2.3.5' TEST_5='14.2.3.5' print_var() { echo "Accessing var num $1" echo TEST$1 #??? But How do... (6 Replies)
Discussion started by: sabina
6 Replies

3. Shell Programming and Scripting

assigning variable value using echo

I am modifying an existing script and it has the following line: export SomeEnvVar=`echo ${SomeLocalVar}` Why wouldn't it just read: export SomeEnvVar=${SomeLocalVar} Is there some reason to use echo instead of a direct assignment? :confused: (2 Replies)
Discussion started by: shellburger
2 Replies

4. UNIX for Dummies Questions & Answers

echo multiple lines

I have a code: echo "First Line ^M Second Line" | mail -s "Lines" abc@gmail.com Basically, I want to send an email with text in this format: First Line Second Line But there is something wrong with my 'echo'. The ^M is not interpreted as carriage return. Please help. (6 Replies)
Discussion started by: laiko
6 Replies

5. Shell Programming and Scripting

Calculation in Multiple files using awk

Hi All, I have some 10 files named samp1.csv, samp2.csv,... samp10.csv Each file having the same number of fields like, Count, field1, field2, field3. And a source.csv file which has three fields field1, field2, field3. Now, i want to find the total count by taking the field1,... (8 Replies)
Discussion started by: johnwilliams.sp
8 Replies

6. Shell Programming and Scripting

Problem in echo value after some calculation

val=21 total=3250 echo "`echo "scale=2; $val*100/$total" | bc`" Output: .64 How do i show the output become "0.64" instead of ".64" ?? Someone can help? (1 Reply)
Discussion started by: alvin0618
1 Replies

7. UNIX for Dummies Questions & Answers

How to assign echo in variable

I've testing the following code: echo test.txt | cut -d . -f1and get the output "text" So why can't i assign the command to a variable? VAR='"echo test.txt | cut -d . -f1"' echo $VAR (5 Replies)
Discussion started by: jl487
5 Replies

8. Shell Programming and Scripting

echo the NAME of the variable

#!/bin/bash varA="AAA1" varB="BBB2" varC="CCC3" for proccx in $varA $varB $varC do echo "the current name is ????? , the value is $proccx" echo " " done #end of script I want the output to look something like this: the current name is varA, the value is AAA1 the current name is... (5 Replies)
Discussion started by: ajp7701
5 Replies

9. Shell Programming and Scripting

Arithmetic calculation in variable

Hi, I am trying to do an addition to a value stored in a variable... var1=`grep -n "match" sample.txt|cut -d : -f1` var2=`echo $var1|cut -d " " -f1` (Here i want add +1 to the output value) (4 Replies)
Discussion started by: Kevin Tivoli
4 Replies

10. Shell Programming and Scripting

Multiple Column Calculation

Hallo Team, I need you you help. I need to sum up all the columns in a .csv file. Lets call the file file1.csv and it looks like below: $ cat file1.csv... (2 Replies)
Discussion started by: kekanap
2 Replies
IO::Digest(3)						User Contributed Perl Documentation					     IO::Digest(3)

NAME
IO::Digest - Calculate digests while reading or writing SYNOPSIS
use IO::Digest; # Get a Digest::MD5 object that takes input while $fh being written or read $iod = IO::Digest->new ($fh, 'MD5'); print $fh "fooo"; print $iod->hexdigest DESCRIPTION
This module allows you to calculate digests while reading or writing file handles. This avoids the case you need to reread the same content to compute the digests after written a file. TEST COVERAGE
----------------------------------- ------ ------ ------ ------ ------ ------ File stmt branch cond sub time total ----------------------------------- ------ ------ ------ ------ ------ ------ blib/lib/IO/Digest.pm 100.0 n/a n/a 100.0 100.0 100.0 Total 100.0 n/a n/a 100.0 100.0 100.0 ----------------------------------- ------ ------ ------ ------ ------ ------ AUTHORS
Chia-liang Kao <clkao@clkao.org> COPYRIGHT
Copyright 2004 by Chia-liang Kao <clkao@clkao.org>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.16.2 2004-09-11 IO::Digest(3)
All times are GMT -4. The time now is 08:30 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy