setsid - run a program in a new session
syntax
$ setsid [options] program [arguments]
$ cat add.sh
#!/bin/bash
# Take input from user and calculate sum.
read -p "Enter first number: " num1
read -p "Enter second number: " num2
sum=$(( $num1 + $num2 ))
echo "Sum is: $sum"
:x
To execute shell script in a new session.
$ sudo setsid ./add.sh
To set the controlling terminal to the current one.
$ sudo setsid -c ./add.sh
To wait for the execution of the program to end, and return the
exit value of this program as the return value of setsid
$ setsid -w ./add.sh
regards,
T.Dhanasekar