what is wrong with this program? (shell script)

Code:

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#!/bin/bash
#program to convert degrees cesius into degrees fahrenheit
#
echo " enter the temperature in degrees celsius "
read a
tf = $( echo "(( 9 * $a ) /5 ) + 32 "  |bc ) 
echo " $a celsius = $tf fahrenheit "
#end

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it is saying " line 6: tf: command not found "

BASH is not as flexible a scripting language as many others. You cannot have a space between tr and =. BASH will interpret tr as a command.
tr=$... is correct.

Quote:

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Originally Posted by mizzle

BASH is not as flexible a scripting language as many others. You cannot have a space between tr and =. BASH will interpret tr as a command.
tr=$... is correct.

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thanks a million