How can I Enter password automatically for an Script?

hack3rcon · 05-16-2015, 03:31 AM

Hello.
How can I write an Script that enter my password for "sudo" command automatically?
for example, I want to run a command that need root permission and when I write it in a bash script, it ask me "sudo" password for user but how can I automate it?
Can it possible for other program like logging via SSH too?

Thank you.

ondoho · 05-16-2015, 08:44 AM

you can add an entry to /etc/sudoers that will enable the user of the script to gain root privileges only for that command, without having to enter a password.

check out https://wiki.archlinux.org/index.php...xample_Entries

if you're still stuck, show us what you got so far.

TobiSGD · 05-16-2015, 09:14 AM

If you don't want to change your sudo configuration, have a look at the Expect scripting language, which is designed exactly for this purpose.

Keith Hedger · 05-16-2015, 11:59 AM

Very insecure but if it's only run on your machine by you you can use

Code:

echo "mypassword"|sudo -S /path/to/command

This just infroms sudo to get the password from stdin.

hack3rcon · 05-17-2015, 10:19 AM

Quote:

Originally Posted by Keith Hedger

Very insecure but if it's only run on your machine by you you can use

Code:

echo "mypassword"|sudo -S /path/to/command

This just infroms sudo to get the password from stdin.

Not worked

I mean is that when I want connect to a system via SSH it put the username and password automatically and not ask me on the monitor.

Keith Hedger · 05-17-2015, 11:01 AM

ssh is NOT sudo you are confusing two differernt commands that ask for two different passwords pleas epost the command you are tring to run.

hack3rcon · 05-17-2015, 11:50 PM

My command is "SSH username@IP Address"

descendant_command · 05-18-2015, 02:11 AM

Use keys.

Keith Hedger · 05-18-2015, 03:48 AM

Quote:

Originally Posted by descendant_command

Use keys.

+1

Code:

man ssh

ondoho · 05-19-2015, 01:04 PM

Quote:

Originally Posted by descendant_command

Use keys.

just to elaborate:
http://linuxconfig.org/passwordless-ssh