Getting the rom name and emulator

daveyman123

will do!

meleu

@sano Here is a way to prove what I said:

[PROMPT]$ cat father.sh
#!/bin/bash
echo "FATHER: Hello, I am the father."
echo "FATHER: Hey son, say hello to the world!"
bash son.sh &
sleep 10
echo "FATHER: Oh no! I am going to die! NOOOOOoooooo..."
sleep 1
echo "FATHER: bye!"
exit

[PROMPT]$ cat son.sh
#!/bin/bash
while true; do
    echo "SON: Hello World!"
    sleep 2
done

[PROMPT]$ bash father.sh
FATHER: Hello, I am the father.
FATHER: Hey son, say hello to the world!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
FATHER: Oh no! I am going to die! NOOOOOoooooo...
SON: Hello World!
FATHER: bye!

[PROMPT]$ SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
SON: Hello World!
...

cyperghost

@meleu I made same intention here
Every 5 seconds one entry is written in log file for 10 times. After a minute or of intensive gaming (Joust Arcade!) you can check tmp/counter.log voila... entry of used Arcade system is there 10 times :)

Sano

@meleu @cyperghost
My bad then, you're right of course ;)

Edit : my guess would only be valid (I think) if the user launching the script disconnects afterward, which is not the case here.
I was probably misled by the statement that the scrolling stops when the game launch.
It was late here anyway, I was drunk, and my cat was distracting me.
Well, enough justifications I think. I'm just obviously no good at this :)

cyperghost

@sano The father & son example of @meleu is very reasonable.
High laughter for this :)

Where is grandma-bash? Will son-bash be father soon?

meleu

@cyperghost @Sano
One more note: the init process (the famous "PID 1") is the orphanage. When a parent process dies, its orphan children are "adopted" by init.

Play a little with that father & son example and check the process table with the ps -alf. Look at the PPID column of the son.shprocess before and after the father.sh's death. ;)

cyperghost

@meleu I see, so the PID changes after the father is dead. So it's necessary to check PID during run if I want to elemenate son.sh
That's indeed interesting and I hopefully will remember if I'm in need to kill everlasting bash process!

meleu

@cyperghost said in Getting the rom name and emulator:

@meleu I see, so the PID changes after the father is dead. So it's necessary to check PID during run if I want to elemenate son.sh

No, no! What changes is the PPID (Parent's PID)! The PID never changes!

cyperghost

@meleu Thank you for clearance. But is the PPID in any way important or is there a usecase? (maybe dumb question?)

EDIT:
Answered myself. The PPID gives relationship of calls so you always know which programm started process x or process y. Helpfull indeed!

meleu

@cyperghost it's not a dumb question at all :)

You can commit a genocide with a Parent's PID.

If a father's PID is 123, you can kill it and all its descendants with

kill -9 -123

But you wouldn't do such villainy, would you?

cyperghost

@meleu > But you wouldn't do such villainy, would you?
Only if the father is a really bad guy and his children are ramparts. But for all time: Peace and Harmony!