Question

this is probably a very stupid question; in a bash script, given the output of, for instance;

awk '{print $7}' temp

it gives 0.54546

I would like to give this to a variable, so I tried:

read ENE <<< $(awk '{print $7}' temp)

but I get

Syntax error: redirection unexpected

Could you tell me why, and what is the easiest way to do this assignment?

Thanks

Answer 1

your syntax should be

read ENE <<<$(awk '{print $1}' file)

you can directly assign the value as well

ENE=$(awk '{print $7}' temp)

you can also use the shell

$ var=$(< temp)
$ set -- $var
$ echo $7

or you can read it into array

$ declare -a array
$ read -a array <<<$(<file)
$ echo ${array[6]}