A technique for scheduling tasks to be run at a specific time or on a specific event.
8
votes
2answers
4k views
Bash Script on Startup? (Linux)
Is there any way to make/run a bash script on reboot
(like in Debian/Ubuntu for instance, since thats what my 2 boxes at home have)
Also, any recommended guides for doing cron jobs? I'm completely ...
1
vote
1answer
507 views
controlling priority of applications using cgroups
I would like to understand cgroups better and would like to understand the use-cases for applying cgroups.
Are cgroups a good way for prioritizing different applications (i.e, giving higher priority ...
2
votes
3answers
669 views
Bash while loop and reading from pipe
I have a Windows command-line program that I'm running in a Bash script in Ubuntu via wine. The Bash script basically looks like this:
wine myprogram.exe | while read line
do
# Process line
done
...
23
votes
1answer
2k views
High CPU usage with CFS?
I asked a previous question to try and isolate the source of an increase in CPU usage when moving an application from RHEL 5 to RHEL 6. The analysis that I did for that seems to indicate that it is ...
12
votes
2answers
571 views
What is a simple way to schedule a single event to happen at some time in the future?
There are often times that I want my computer to do a single task, but not right now. For example, I could have it notify me in 30 minutes that it is time to leave work. Or maybe I want it to run a ...
8
votes
2answers
559 views
how to queue a command to run after another command finishes?
Sometimes I start a program that takes a very long time to finish (emerge), then realize that I should go to bed instead of waiting for it. If I know this in the first place I would run
program; halt
...
9
votes
2answers
17k views
How can get a list of all scheduled cron jobs on my machine?
My sysadmin has set up a bunch of cron jobs on my machine. I'd like to know exactly what is scheduled for what time. How can I get that list?
21
votes
7answers
26k views
Where are cron errors logged?
If I setup cron jobs incorrectly they appear to silently fail. Where should I look for an error log to understand what went wrong?
8
votes
1answer
2k views
Isolating cause of higher CPU usage on RHEL 6 vs RHEL 5
I'm currently looking to move our system from RHEL 5 to RHEL 6, but I've run into a snag with unexpectedly high CPU usage on the RHEL 6 machines. It appears that this may be due at least in some part ...
1
vote
2answers
122 views
Run a command at a certain time in cygwin
I am writing a bash (.sh) script for cygwin. I want to run a certain command at specific time.
I tried the following:
echo "test" | at 19:00
but I get the following error:
The AT command has been ...
