bash if statement how to test program output without assigning to variable

A common method in bash is to assign output to a variable like this:

somevar=`uptime`

That works too but it could be more efficient to do something like this:

if [[ $(uptime|awk '{print $3}') > 20 ]]; then

echo "uptime greater than 20 days";

fi


Tags:

bash, output, assigning, variablea, method, assign, variable, somevar, uptime, efficient, awk, echo, quot, fi,

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