I would like to make a bash script that shuts down. Problem is... How am I supposed to do this when shutdown requires sudo and ultimately requiring me enter my password as a response?
I.e.
#/bin/bash
#Do: shutdown at xx : xx time
shutdown 23:45
#done (yea just one line...)
How could I make sure my password is given to the sudo response without manually entering it ever time?
How could one make this script run automatically i.e. on startup every time.
I have installed a cluster computer with 10 nodes . The manufacturer is HP . All nodes and the master node have redhat enterprise linux installed in them . When I shutdown the nodes from the master terminal using "shutdown -h now" they get shutdown . But they dont get completely turned off . This issue bothers me when the power supply is given , all nodes boot up simultaneously generating a huge heat .
Thing to note : When we shutdown our PC they get completely turned off . When the power supply is given , a press on the Power On button is required to boot the system. But , why does it not happpen in the case of cluster? Is there any other way of completely turning off the nodes from the master terminal ?
when my pc boots and shuts down my monitor goes into 'input out of range' mode for a bit between the gui and the text only phases of boot/shutdown.is there a way to fix this? or where to start troubleshooting?also, when it shuts down it hangs after coming back to the text only part
Recently I installed vncserver (tigervnc) on my desktop. Ever since my computer refuses to shutdown normally. At shutdown the following message pops up: Quote: System policy prevents stopping the system when other users are logged in Then I have to enter the root password to shutdown. If I stop vncserver before, the computer shuts down normally.
I cant shutdown without running sudo shutdown. When I try to use the default gnome shut down it takes me back to the logon screen. Fresh install today and I've had the same problem on other installs.
Ubuntu will randomly pop up the shutdown menu and then shutdown.It seems to happen when im in firefox and typing and it has been difficult to replicate. I dont think it is a temp issue since watch sensors shows temmp of 40-50C. Someimtes it happens every minute someimtes i can go 10min without it happening.
Dell Inspiron 1525 ubuntu 10.04 (only os on system)
looking for a command that shutdown/reboot my ubuntu just same as process that happened when I press shutdown buttonIn fact I need to close all programs that are running and then PC shutdown (that happened when I press shutdown button).
I cannot locate shutdown log for Linux shutdown to check various activities carried out during shutdown. I can view Startup Log which is availble on console>Applications>System Tools>System Logs.
I have included Shutdown/Startup in dbora, so that Oracle 10gR2 Shutdown/Startup will be automated during OS Shutdown/Startup.
I want to check Shutdown log because Oracle Shutdown was not running, as from $ORACLE_HOME/shutdown.log contains no entries, where as startup log contains latest startup details.
That means here 2 issues are there. One, I want to locate OS Shutdown Log and the other being Why Oracle Shutdown not getting executed.
I did a live upgrade from 11.3 KDE and observe a following issue.When I press the shutdown button on the laptop it initiates the shutdown and shuts down fine but after a significant delay of time (something like 30 seconds). When I click the shutdown button in KDE it initiates the shutdown instantly. This was not the case in 11.3 where the shutdown worked the same regardless of the method that triggered it
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:
Code: #!/bin/bash cat > ~/generateGridmix2data.sh << END
Code: #!/bin/bash trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c echo "Press ctrl+c during 5 sec loop" for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
I have searched and searched and maybe I don't know how to articulate this issue with out just posting the problem I'm having. Every time I bring up a terminal window I get the following "Header"
To be honest I cheated and used the .bashrc / .profile files from Ubuntu and all was working fine for a while now and it seems something changed to cause this... any ideas on why I am getting this? I checked my .bashrc and my /etc/profile and it doesn't look like anything is amiss..
Further to this LQ thread which Tinkster solved by suggesting the last command (thanks Tinkster) I have been exploring last -x reboot and have found that the reported duration is incorrect for the last reboot and shutdown when a old wtmp file is used. Not having a record for the following shutdown, last assumes that the system has been up until the current time and similarly for the shutdown.
The output comes in time order, latest first, each line showing the time of the reboot and the uptime from then to shutdown. Using last -x reboot shutdown to show the shutdown time, here's an illustration
Code:
shutdown system down 2.6.29.6-smp Sun Mar 7 15:35 - 03:02 (11:27) reboot system boot 2.6.29.6-smp Sun Mar 7 09:35 (05:59) 09:35 until 15:35 is 05:59.
When the uptime exceeds 24 hours it is shown as (<days>+<hours:minutes) like this Code: shutdown system down 2.6.29.6-smp Sun Feb 21 12:39 - 13:20 (00:40) reboot system boot 2.6.29.6-smp Sat Feb 20 09:39 (1+02:59) 09:39 until 12:39 the next day is 1 day 02:59.
The time in parentheses at the end of the shutdown lines is normally the time until the next shutdown.
So far so good. The incorrect output is for the last reboot and shutdown of an old wtmp file. Here's the output of last /var/log/wtmp -x reboot shutdown; last -f /var/log/wtmp.1 -x reboot shutdown
Code:
[snip] reboot system boot 2.6.29.6-smp Fri Mar 12 07:42 (01:54) shutdown system down 2.6.29.6-smp Fri Mar 12 01:31 - 09:37 (08:05) wtmp begins Thu Mar 11 08:25:26 2010 [snip] reboot system boot 2.6.29.6-smp Wed Mar 10 14:12 (15+01:42) shutdown system down 2.6.29.6-smp Wed Mar 10 12:41 - 15:54 (15+03:13) [snip]
The boot started at "Wed Mar 10 14:12" which had an actual uptime of 1 day 11:20 is reported as 15 days 03:13 which is the time from then until the last -f /var/log/wtmp.1 -x reboot shutdown command was issued. The time from shutdown to shutdown is similarly affected.
I think it would be better to count the len and remove 3 chars to right to get the extension, but it can be macintosh filenames with have 4 chars for extensions.
I'm new to Ubuntu and have spent several days trying to make a few simple alterations to my Myth 9.10 installation. My biggest task was to get the MCE "power" and "start" buttons working, which they now are - sort of.
The problem is with the shutdown command that the power button activates seems to be different to the shutdown command from the taskbar shutdown menu i.e. when I switch off the computer with the remote it restarts with the "recovery" menu as it wasn't shutdown properly. Same thing happens with the shutdown command from a terminal window. Shutting off from the desktop menu is fine.
I've noticed something, and hoped there was a work around.when I write a simple bash script, and run it, if I close the terminal i ran the bash script inside, the bash script stops. What are the solutions for this? Basically I want to run my bash script and close the terminal, keep the bash script running.
What happens when the script executes is that the ssh connection works and parks me at the remote hosts's shell login. Therefore, the "firefox" command refuses to execute. I need to know how to make the "ssh" connection occur, stay open, and go into the background so that the rest of the script can execute.If I could also do this with the "firefox" line so that the entire term window could be closed would also be helpful.
I am trying to write a bash script that sources another bash script. Essentially, I need a few lines to check to see if a certain variable is set. If not, I set it manually, and then source a scripts with that variable in the path. I wrote a test script to try it, but for some reason the last line does not work. Here is what I wrote:
#!/bin/sh source ~setupdir/setup.shrc #just a test, this line works echo ${#SETUP} # prints 0 if setup is not set, which it isn't if [ ${#SETUP} -eq 0 ] then SETUP="~setupdir" fi echo $SETUP # prints ~setupdir
can anyone tell me the difference between "sudo shutdown now" and "sudo shutdown 0"
i know that "sudo shutdown 0" will shutdown the system in 0 seconds. but when i run sudo shutdown now my system goes into the maintenance mode?? what is maintenance mode??
I am currently running Ubuntu 10.10 on my Maxdata ECO4700IW laptop. Everything works great except after I have started utorrent the laptop freezes on the shutdown splash screen. A couple of the dots turn on and then it freezes there. Rebooting works fine however.
I have already tried killing utorrent and wine at the command line using
I installed ubuntu 10.10 32bit on my computer and it does not shutdown properly, it hangs on the desktop wallpaper. i also installed linux mint 32bit and it has the same problem. but when i installed ubuntu 10.10 64bit, it does not have that problem.
I like 10.04 much better than 9.10. It seems faster and looks great. I had to change the main theme back to "clearlooks", but aside from that, it worked from day one. Just one small annoyance:When I click on shutdown, I get a dialog box...is there any way to bypass this and just shutdown "now", without any further input from me.
I am using ubuntu 9.10. After newly installation, it is quick for starting up and shudown.But I don't know why it becomes so slow that I have to press the power button to shut it down in force. how I can see what the system is doing in the shutdown process. Then maybe I can figure it out which application slows down the shutdown
