Ubuntu – Could not save the file /usr/… permission denied (13.04)

13.04conkygeditpermissions

I am running Ubuntu 13.04 and am trying to create an .sh file for conky in /usr/bin using gedit.
When trying to save I get the error dialogue:

Could not save the file /usr/bin/conky-start.sh
You do not have the permissions necessary to save the file. Please check that you typed the location correctly and try again."

From searching, I think I have to run a command in terminal to allow permission, but I couldn't find out what that is.

Edit:
I'm trying to create the file conky-start.sh, not change or run it.
Thus far, I've opened gedit, copied and pasted some required info from the net, and I'm trying to save-as /usr/bin/conky-start.sh

Perhaps I need to create the file first in terminal, then edit it?

How would I do that?

Best Answer

Please try:

gksudo gedit /usr/bin/conky-start.sh

Write the contents of the file and you should be able to save it. To make it executable, you may need to do:

sudo chmod +x /usr/bin/conky-start.sh

PubKeyAuthentication

Set up your client

Generate your key.
```
ssh-keygen
```
Configure ssh to use the key.
```
vim ~/.ssh/config
```

Copy your key to your server.

ssh-copy-id -i /path/to/key.pub SERVERNAME`

Your config file from step 2 should have something similar to the following:

Host SERVERNAME
Hostname ip-or-domain-of-server
User USERNAME
PubKeyAuthentication yes
IdentityFile ./path/to/key

You can add IdentitiesOnly yes to ensure ssh uses the specified IdentityFile and no other keyfiles during authentication. Setting IdentitiesOnly prevents failed authentications from occurring, when ssh would otherwise attempt to login with multiple keys. Setting this is also considered more secure, as you're not leaking information about other keys you have installed, and maintaining separation of your keys between different levels of access.

Troubleshooting

use "-vvv" option
Make sure the server has your PUBLIC key (.pub).
Make sure your IdentiyFile points to your PRIVATE key.
Make sure your .ssh directory has 700 and the files within are 600 permissions.
- ssh-keygen will create files and directories for you with the proper permissions
tail -f /var/log/auth.log (on the server) and monitor errors when you attempt to login
If you have many key files, try IdentitiesOnly yes to limit the authentication to use the single, specified key.

Ubuntu – How to edit the lightdm.conf file and save it

You can use gedit or nano (among others) as below

sudo nano /etc/lightdm/lightdm.conf
sudo -H gedit /etc/lightdm/lightdm.conf

Then Ctrl+S for gedit or Ctrl+O for name to save your edits.

Either will do fine, the only difference is that nano is a terminal-based editor while gedit has its own GUI.

Best Answer

Related Solutions

Ubuntu – SSH Permission denied (publickey)

PubKeyAuthentication

Ubuntu – How to edit the lightdm.conf file and save it

Related Question