I must use first sentence from a file to put into variable

Shell Programming and Scripting
1

i am having some bash script which must use first sentence of the file. For example i have file which content is:

test 213

So I must use word test into my bash script, and put it into variable.
I am using a one variable named value

value=$(</home/rusher/test.txt)

so instead using test.txt in my value variable i want that word TEST be automaticly from a txt file which first word is allways word which must stay in that value variable.

2 
read value x < textfile