Bash arithmetic issue Post: 302977828

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Need help is manipulating a file with some arithmetic operations using bash script

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cf

cf(1)																	     cf(1)

   NAME
       cf - Confluence compiler

   SYNOPSIS
	   cf [options] [file] [arguments]

   DESCRIPTION
       Confluence  is  a functional programming language for reactive system design, including digital logic systems (ASIC, FPGA) and control ori-
       ented hard real-time software.

       The Confluence compiler (cf) translates a Confluence description into Verilog and VHDL (for digital logic synthesis), C (for simulation and
       software targets), and NuSMV (for formal verification, via model checking).

   OPTIONS
       -h OR -help Prints this information then exits.

       -b filename OR -base_env filename

	      Sets the base environment for the compilation.
		     Overrides the CF_ENV

	      environment variable.
		     If CF_ENV not defined and -base_env option not set, the base environment defaults to /usr/share/confluence/base.cf.

       -e integer OR -error_limit integer

	      Sets the maximum number of reported errors.
		     A negative number reports all errors.

       -c OR -compile_only Parses and compiles, but does not evaluate a program.

       -o name

	      Sets the output file name.
		     Default is out.fnf.

       -test Run the built in unit tests.

   ENVIRONMENT VARIABLES
       CF_ENV A filename that specifies the base environment (commonly base.cf).

       CF_LIB The directory location of the Confluence standard library (optional).

   VERSION
       0.10.6

   AUTHOR
       Tom Hawkins (tomahawkins@yahoo.com)

   SEE ALSO
       http://www.confluent.org/

   COPYRIGHT
       Copyright (C) 2003-2005 Tom Hawkins

								  31 January 2010							     cf(1)

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