Shell Programming and Scripting

9:40am  up 9 days, 10:36,  4 users,  load average: 0.02, 0.01, 0.00

$ echo "9:40am  up 9 days, 10:36,  4 users,  load average: 0.02, 0.01, 0.00" | grep -o 'load.*'
load average: 0.02, 0.01, 0.00

echo "9:40am  up 9 days, 10:36,  4 users,  load average: 0.02, 0.01, 0.00" | grep -o '[0-9]\+\.[0-9]\+*'
0.02
0.01
0.00

echo "9:40am  up 9 days, 10:36,  4 users,  load average: 0.02, 0.01, 0.00" | grep -o '[0-9]\+\.[0-9]\+*'|xargs|
{ read var1 var2 var3;  echo "Var 1: $var1, Var 2: $var2, Var 3: $var3" ;}

Var 1: 0.02, Var 2: 0.01, Var 3: 0.00