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Condition for decimal numbers

 
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# 1  
Old 12-29-2010
Condition for decimal numbers
Hi experts,

My number output has somehting like below

filename /temp
0.23
10.23

How do i put a condition to the above numbers?

e.g

if [ $temp > 0.1 ] then

the . seem to give me problems. Pls help.

thanks

---------- Post updated at 05:25 PM ---------- Previous update was at 05:23 PM ----------

another thing to add on is.

Need to put this is into a shell scripting using Unix. thanks
# 2  
Old 12-29-2010
Code:
val="$(echo "$temp" | sed 's/0.//')"
if [ $val -gt 1 ] ; then
     echo "greater"
fi

R0H0N
# 3  
Old 12-29-2010
Rohon,

if my condition which i am performing also has . how do i do that?

-gt 0.1
# 4  
Old 12-29-2010
Code:
% [[ 0.3 -gt 0.1 ]]&& echo OK||echo KO
OK
% [[ 0.3 -lt 0.1 ]]&& echo OK||echo KO
KO

R0H0N
# 5  
Old 12-29-2010
rohon,

i get this output. output seems ok whr my input file has the value 3.4

whats the error ./str %:not found?

temp=/tmp/st
+ % [[ /tmp/st -gt 0.1 ]]
./str: %: not found
+ echo KO
KO
# 6  
Old 12-29-2010
This code will handle any floating point expression correctly.
The "bc" will return 0=false, or 1=true:
Code:
if [ "$(echo $temp \> 0.1 | bc)" -eq 1 ]; then ....

# 7  
Old 12-29-2010
i realise its not taking the data from my input file.
 
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