$var -ne ${var} why?

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# 1  
Old 11-22-2002
$var -ne ${var} why?

hi there,

i read man sh(1) and tried to understand the difference between $var and ${var}, but i'm still unsure. when do we use one and when do we use the other? i need an example Smilie

# 2  
Old 11-22-2002
In a case like:

We want to create a variable called title which has the value "Asystem". But without the braces the shell will think we have a variable called "lettersystem".
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