How to check in bash script that it was started by "Run in Terminal" from GUI?

Question

I run bash scripts. I want to run them both from terminal, and from GUI with "Run in Terminal" and leave after run interactive bash. Simply seeing output is explained here : add read -rn1.

Problem X:
I want a "clean" solution, to have at the end same terminal with bash that I can close with one exit if script is run from terminal and if from GUI. I can add bash -i, but if run from terminal it would require two exit to close the terminal. exec bash -i resulted in same.

Is there a way in a script to check if it was started from GUI via "Run in Terminal"?

Added 1 per comment:

ps aux | grep aaaa # while script started from GUI was running
mint       53293  0.1  0.0  11216  3356 pts/3    Ss+  21:58   0:00 /bin/bash /home/mint/aaaaa.sh

Noted the difference from one started from terminal is Ss+ instead of S+.

Answer 1

I assume your bash script is named /path/to/mybashscript.sh

Use ps to find mybashscript.sh ($0 if run within the script); include the state/stat columns to identify the specific states:

ps --sort +pid -eo pid,stat,command | grep "$0" | head -1 | awk '{print $2}' | grep "s"

or another way to filter out grep line:

ps -eo pid,stat,command | grep "$0" | grep -v grep | awk '{print $2}' | grep "s"

From your comments the difference is due to added s: s is a session leader for GUI way, Ubuntu does not have that way to start script from file manager to check.

From man ps, the state codes are as follows:

PROCESS STATE CODES
   Here are the different values that the s, stat and state output specifiers (header "STAT" or "S") will display
   to describe the state of a process:

           D    uninterruptible sleep (usually IO)
           I    Idle kernel thread
           R    running or runnable (on run queue)
           S    interruptible sleep (waiting for an event to complete)
           T    stopped by job control signal
           t    stopped by debugger during the tracing
           W    paging (not valid since the 2.6.xx kernel)
           X    dead (should never be seen)
           Z    defunct ("zombie") process, terminated but not reaped by its parent

   For BSD formats and when the stat keyword is used, additional characters may be displayed:

           <    high-priority (not nice to other users)
           N    low-priority (nice to other users)
           L    has pages locked into memory (for real-time and custom IO)
           s    is a session leader
           l    is multi-threaded (using CLONE_THREAD, like NPTL pthreads do)
           +    is in the foreground process group