I want a simple linux program to create 6 child process using a for loop and capture each of the child PID in array. The problem is if I assign the command to variable the command {./child2.sh &}
won't execute anymore.
I tried doing something like
cid[$i]=./child2.sh & cid[$i]=./child2.sh & cid[$i]=./child2.sh &
The pid of the latest program launched in background in stored in $!
. Try the following:
for i in 0 1 2 3 4 5
do
./child2.sh &
cid[$i]=$!
done
To get the exit status of the terminated processes, use wait
command:
for i in 0 1 2 3 4 5
do
./child2.sh &
cid[$i]=$!
done
for i in 0 1 2 3 4 5
do
wait ${cid[$i]}
echo "Status of child#$i (${cid[$i]}): $?"
done