They both work, however the second one is simpler and all fits on one line.  The << eof method is best used when you have multiple lines you want to add to a file or when you have a bunch of characters what you would otherwise need to escape.

Brian Cluff

On 01/05/2016 12:03 PM, Michael Havens wrote:
so my other  command:

#adjust where pictures are stored
sudo cat >> /etc/fstab << eof
/media/bmike1/entertainment/Pictures /home/bmike1/Pictures none bind 0 0 
eof

should be:

echo /media/bmike1/entertainment/Pictures /home/bmike1/Pictures none bind 0 0  >>/etc/fstab

????

On Tue, Jan 5, 2016 at 1:55 PM, Brian Cluff <brian@snaptek.com> wrote:
You are trying to write "vm.swappiness=10" directly to the swappiness settings.
If that is what you are trying to do, do it like this:

echo 10 >/proc/sys/vm/swappiness

I suspect that what you really want to do is write it to a config file so that it is automatically set every time you boot.  In that case do:

echo vm.swappiness=10 >/etc/sysctl.d/99-swappiness.conf
sysctl -p /etc/sysctl.d/99-swappiness.conf

The last line just loads the settings, you could also just reboot.

Brian Cluff


On 01/05/2016 11:26 AM, Michael Havens wrote:
I have a small copy n paste txt file for when my hard drive fails (hopefully in the distant future) so I can get my new hard drive up and running again as closely similar to the previous drive as possible.
I made the one command up myself and just discovered it does not work. That command is:
  
  # Reduce the swap tendency 
  cat >> /proc/sys/vm/swappiness <<eof
  > vm.swappiness=10
  eof

with the error of:

   cat: write error: Invalid argument

I have a similar 

  sudo cat >> /etc/fstab << eof
  /media/bmike1/entertainment/Pictures /home/bmike1/Pictures none bind 0 0 
  eof

which I do not believe was implemented  correctly as when I inspect 'mount' there does not appear to be the entertainment directory or pictures directories listed anywhere. So I suppose it is wrong then....


--
:-)~MIKE~(-:


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