Question: I'm quite new to ubuntu. I installed it sucessfully on a Laptop, and a regular PC. 
I am now trying to install Ubuntu 12.04 on a hp xw9300 Workstation. 

Hardware specification can be found [here](http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?spf_p.tpst=kbDocDisplay&spf_p.prp_kbDocDisplay=wsrp-navigationalState=docId%253Demr_na-c00293051-2%257CdocLoc%28ale%253D%257CcalledBy%253D&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken#N1000E)

I have NVIDIA Quadro NVS 280 Graphics Card.

The installer from an usb key run smoothly. 

But when I boot the PC right after, I can t have a graphical display.(I just have the desktop background of Ubuntu; no tool bars). The console mode works fine. 

I have the same problem with both i86 and amd64 versions of ubuntu. 

The error I have:

```
[TTM] failed to find memory space for buffer eviction
E[Xorg[1106]] fail ttm_validate
E[Xorg[1106]] validate vram_list
E[Xorg[1106]] validate: -12

```

And this is repeating.

I manage to run apt-get update, apt-get upgrade from console. 
I browsed the web to find answers.
If you have any idea of what could be blocking, any help will be welcome.

Reguards.

Answer: 
I'd use `crontab` to schedule a command. To do that, run `crontab -e` and add something like the following like:

```
0 8 * * Mon  bash -c 'cd /path/to/dir; mv "$(ls -t expdp*.dump | head -1)" /another/dir/'

```

That will look for the latest file that matches `expdp*.dump` in `/path/to/dir`and move it to `/another/dir/`. Scheduled to run 8am, every Monday.
You could use something like this (I have no idea if this is the best way to do it as I just put something together and it's working).

```
#!/bin/bash
cd /source/directory/
cp `ls -1t | head -1` /destination/directory/

```