Echo Variables and Text


 
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# 1  
Old 10-04-2009
Echo Variables and Text

I've been trying to get the syntax right so I can echo a $var and then text around it or after it. It either wont display text or $var or one overwrites the other at the beginning of the line. Trying to do something like this.

Code:
var=1
echo $var"+1.1"
#output expected   1+1.1

Its an older version of bash on Solaris 10.

Ultimately what I'm trying to do is add two decimal numbers. I've tried bc and dc but I cant get them add with vars instead of numbers.
# 2  
Old 10-04-2009
Hi,

Code:
var=1
echo $var + 1.1 | bc

# 3  
Old 10-04-2009

Code:
calc()
{
    awk 'BEGIN { print '"$*"'; exit}'
}

Code:
$ calc 1.2 + 3.4
4.6

# 4  
Old 10-04-2009
Or with "bc".

Code:
var=1         

echo "scale=1;(${var}+1.1)"|bc

2.1

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