Can't exit out of a script

Whereis404 · Fri Apr 17, 2015 9:23 pm

I started a script that starts at bootup, simple script, but the contents run in an infinite loop.

I thought I could use ctrl+c to stop it... I was wrong

Right now I can't exit that script, so I can't access the terminal. Anything I should do?

klricks · Sat Apr 18, 2015 2:27 am

try Ctrl-Alt-F2

Whereis404 · Sat Apr 18, 2015 3:14 am

klricks wrote:try Ctrl-Alt-F2

Did that, what is that suppose to do? I just see the cursor flashing on the screen now.

klricks · Sat Apr 18, 2015 4:25 am

Whereis404 wrote:
klricks wrote:try Ctrl-Alt-F2
Did that, what is that suppose to do? I just see the cursor flashing on the screen now.

It should give you a login prompt then console after login.

If that does not work then you can put the SD card in a Linux computer and edit / fix your script from there.
If you don't have a Linux computer you can obtain a Linux 'Live' CD and temporarily boot a Windows computer to Linux.
-OR-
Make a working SD card and attach a SD cardreader to the RPi. Then put the broken card in the SD reader and edit your file.

Joe Schmoe · Sat Apr 18, 2015 4:43 am

Did you put your script in the "/etc/rc.local" file?

If so, you've just discovered why using /etc/rc.local is a bad idea. Because it is easy to lock up your machine by using it incorrectly.

PeterO · Sat Apr 18, 2015 5:29 am

klricks wrote:
Whereis404 wrote:
klricks wrote:try Ctrl-Alt-F2
Did that, what is that suppose to do? I just see the cursor flashing on the screen now.
It should give you a login prompt then console after login.

All the logins on the virtual consoles are started up AFTER rc.local has finished executing. If the OP's script never
finishes, and it hasn't been put into the background ( using "&" ), then the logins will never start up...

rc.local should only be used with great care !

PeterO

Whereis404 · Mon Apr 20, 2015 3:12 pm

Thanks for the info
I never knew that doing it that way will lock up the computer before.

I'll be adding a break to my program now. I didn't add the & to my script as it is suppose to run in the foreground.

Right now I am going through the file structure to get my program, though I can't seem to find it in /home/pi/Documents/...

RaTTuS · Mon Apr 20, 2015 3:28 pm

viewtopic.php?f=29&t=7192
this may help

Whereis404 · Thu Apr 23, 2015 3:53 am

Thanks everyone

I fixed it by putting a linux box on my computer and going into the file system and then editing the script to have a break point out of the loop.

I will be more weary next time

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