float comparison

Shell Programming and Scripting
1

I had a variable 1:80 8 in one varialbe say var=1:80 8

i comapred the below

if [ $var = "1:80 8" ]
then
--
else
----

thought if condition is true its always going in the else condition....its not giving any compilation errror also....is there any problem bcoz of space...

can some one help me out

2

Try this:

if [ "$var" = "1:80 8" ]
then
--
else
----

Also, as a good practice, use " " around variable names that are used for comparison.

3

mkan, you had a similiar post please help immediate which was locked because one of ours mods thought it to be a homework question. I shall not go against that judgement and provide the solution.

But read the man pages of sh. It will give you a better understanding. Look under the sections of QUOTING

Edit. Looks like the solution is already provided.

4

I dont think that this question falls under the "homework" category. The OP is not asking for a readymade solution for some problem - we get many more questions where the OP just asks "How do I..." without saying that they have actually done about it. This question refers to a single line in code that the OP has already written - I think that the doubt is legitimate, especially if you are new to scripting.