I have a command which upon execution return me set of numbers which I want to store in a bash array.
vihaan@trojan:~/trash$ xdotool search brain
Defaulting to search window name, class, and classname
52428804
50331651
62914564
65011896
48234499
How do I store these values in an array ?
In this simple case:
array=( $(xdotool search brain) )
If the output were more complicated (for example, the lines might have spaces in them), you can use the bash builtin mapfile:
mapfile -t array < <(xdotool search brain)
(help mapfile for more information)
declare -a myarr # declare an array
myarr=($(grep -v "Defaulting" $(xdotool search brain) | awk '{printf $1" "}')) # Fill the array with all the numbers from the command line
echo ${myarr[*]} # echo all the elements of the array
OR
echo ${myarr[1]} # First element of the array
grep -v is harmless but unnecessary: that line is sent to stderr, not stdout. You shouldn't use printf in awk when you mean print for the same reason you shouldn't do that in C: there might be a percent in the string.You could write another command the expects input and puts said input into an array. So you would pipe the output from the first command to your toArray command. Then do what you need to with the toArray output.
