Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to run a 4 commands before a hibernate and another 2 commands after update. Is it also possible to arrange the time/squence of each commands,if yes then could you explain how?

share|improve this question
up vote 5 down vote accepted

You can run commands before and after hibernation or suspension (note there is a difference; hibernation is to disk, suspension is to memory) by creating a script in /etc/pm/sleep.d:


case "$1" in
    # put commands to run on hibernation here
    # put commands to run when returning from hibernation here
    # put commands to run on suspend here
    # put commands to run when returning from suspension

The filename of the script will dictate the order in which the scripts run compared to other scripts in sleep.d. Within your script, your commands will run in whatever order you put then in the script.

share|improve this answer
Could you explain why the filename has to be 'xxname' where x is a number, what does x mean? – user128712 Jun 15 '13 at 4:45
The files are ordered (and therefore executed) in alpha-numeric order. The number is not necessary, but it provides a way of controlling the order of the scripts. – David Edwards Jun 15 '13 at 9:11
Please note that every command in the xxname file will be executed as root. So if you need to stop/start some non-system application (for example, Dropbox) run corresponding command as usual user with aid of su (for example, su --command 'dropbox start' user. – flaz14 Jul 16 at 14:37

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.