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Testing for multiple words in a Variable

 
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# 1  
Old 02-17-2009
Testing for multiple words in a Variable
Hi,

Been mulling this one over today and can't seem to find the exact method to solve this. So I assign a value to a variable based on a grep. Usually that variable has 1 value but today I realized that depending on the text I parse, it might get 2 or 3 or more. The result comes out like the following:

value1 value2 value3

So what I want to do is create a loop to handle these cases by testing if the variable has multiple words like the above and if it does, I want to substitute a comma in place of the spaces so the result would be:

value1,value2,value3

Any help is appreciated, thanks!
# 2  
Old 02-17-2009
Quote:
Originally Posted by eltinator
Hi,

Been mulling this one over today and can't seem to find the exact method to solve this. So I assign a value to a variable based on a grep. Usually that variable has 1 value but today I realized that depending on the text I parse, it might get 2 or 3 or more. The result comes out like the following:

value1 value2 value3

So what I want to do is create a loop to handle these cases by testing if the variable has multiple words like the above and if it does, I want to substitute a comma in place of the spaces so the result would be:

value1,value2,value3

Any help is appreciated, thanks!
Here is one way to do it.

out="value1 value2 value3"
Code:
out=$(echo ${out} | tr " " ",")

 
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