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Full Discussion: Adding Two Array in shell script
Top Forums Shell Programming and Scripting Adding Two Array in shell script Post 303002226 by jgt on Sunday 20th of August 2017 09:12:37 AM
Old 08-20-2017
Code:
     sum=$(( ${arr1[$i]}+${arr2[$i]} ))       #echo $sum
     if [ $sum -gt 9 ]
     then
       arr3=("${arr3[@]}" "$sum/10") #sum divided by 10
       arr3=("${arr3[@]}" "$sum%10") #mod 10 sum
     else
       arr3=("${arr3[@}" "$sum")
      fi

I don't normally use bash or arrays, so I am sure of the syntax.
Will there be a possibility that the sum is greater than 99?
 

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LEARN ABOUT SUSE

sum

SUM(1)								   User Commands							    SUM(1)

NAME

       sum - checksum and count the blocks in a file

SYNOPSIS

       sum [OPTION]... [FILE]...

DESCRIPTION

       Print checksum and block counts for each FILE.

       -r     use BSD sum algorithm, use 1K blocks

       -s, --sysv
	      use System V sum algorithm, use 512 bytes blocks

       --help display this help and exit

       --version
	      output version information and exit

       With no FILE, or when FILE is -, read standard input.

AUTHOR

       Written by Kayvan Aghaiepour and David MacKenzie.

REPORTING BUGS

       Report sum bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT

       Copyright (C) 2009 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

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

	      info coreutils 'sum invocation'

       should give you access to the complete manual.

GNU coreutils 7.1						     July 2010								    SUM(1)
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