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Full Discussion: Saving Mod in a variable
Top Forums Shell Programming and Scripting Saving Mod in a variable Post 303004689 by mukulverma2408 on Friday 6th of October 2017 12:29:55 PM
Old 10-06-2017
Saving Mod in a variable

Hello Experts,
In one of my shell script, I've been trying to calculate mod and saving it in a variable, below is what I have tried but it isn't working.
Any help appreciated!!!
Code:
#!/bin/bash
num1=4
num2=3
echo "Number one is $num1"
echo "Number two is $num2"
mod_final=$(( echo "num1%num2" | bc ))
echo "Final Mod is $mod_final"

Moderator's Comments:
Mod Comment Posting "Does not work" without explanation does not help you or anyone. If a command does not work for you, please show the exact circumstances you used it, and the exact error or malfunction you received. Do not paraphrase errors, or post the text as links, images, or attachments if you can avoid it: Paste the exact message, in code tags, like [code] text [/code] or by selecting the text and using the Image button.

Thank you.

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Last edited by RudiC; 10-06-2017 at 02:02 PM..
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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