How to provide password to the prompt through Java
Hi All,
I am using Ubuntu machine with JDK 6. I am running following command on shell-
. Now, it prompts for sudo password and I provide the sudo password on shell and "somescript" starts running with sudo permissions.
What I want to do is, I need to execute "sudo ./somescript" fromJava code. For that I have created a jar file which executes following command
view plaincopy to clipboardprint?
now, the problem is I dont get any prompt where I can provide the sudo password.
Hi all,
passwd <username> < /var/adm/passwd.txt
cat /var/adm/passwd.txt
abcd1234
abcd1234
when I run this from the script, it comes with:
New password:
It is not able to pick from the location /var/adm/passwd.txt.
thanks in advance. (6 Replies)
Hey there, I'm trying to do a very simple rsync to back up my computer to an external drive connected via usb every night, but it keeps asking for a password. I tried using the password file flag, but it looks like that is only a daemon. Does anyone have any ideas? This has eaten up a lot of my... (4 Replies)
Is there any way I can change the prompt which asks for the password on a UNIX system? e.g. When I login using Telnet instead of "Password" I should get "Correct Password".
Thanks,
Vineet (3 Replies)
I would like to do some of my Java programming homework at home, and when i type things such as "javac" & "java" it does not recognize it. How do i set it up so it recognizes Java coding? (1 Reply)
I would like to do some of my Java programming homework at home, and when i type things such as "javac" & "java" it does not recognize it. How do i set it up so it recognizes Java coding? (1 Reply)
Hello,
I have a requirement to shut down and start up my application on different environments (Dev, QA and Prod).
I have around 24 servers. I have to login to each server manually for shutinng down the application.
I wrote a shell command on each server and I am invoking those shell... (2 Replies)
I am executing a shell script which contains a jar call to an external java package for which I don’t have a read access to. The external package was written in such a way that whenever we make a java –jar call to the package, it shows a prompt on the console asking if we want to continue or no... (1 Reply)
Hi ,
I am trying to unzip some file in a dir using shell script ,but it prompts for password to unzip those files ,how would i provide the passoword in the script it self (1 Reply)
Hi, i want to call the rsync in a shell script so that i can run it in background by passing the password within script itself. Can any one please let me know how can i provide the password in the shell script itself so that rsync will read the password when promted by the script.
Its very... (11 Replies)
Discussion started by: Little
11 Replies
LEARN ABOUT LINUX
sulogin
SULOGIN(8) Linux System Administrator's Manual SULOGIN(8)NAME
sulogin - Single-user login
SYNOPSIS
sulogin [ -e ] [ -p ] [ -t SECONDS ] [ TTY ]
DESCRIPTION
sulogin is invoked by init(8) when the system goes into single user mode. (This is done through an entry in inittab(5).) Init also tries
to execute sulogin when the boot loader (e.g., grub(8)) passes it the -b option.
The user is prompted
Give root password for system maintenance
(or type Control-D for normal startup):
If the root account is locked, as is the default on Ubuntu, no password prompt is displayed and sulogin behaves as if the correct password
were entered.
sulogin will be connected to the current terminal, or to the optional device that can be specified on the command line (typically /dev/con-
sole).
If the -t option is used then the program only waits the given number of seconds for user input.
If the -p option is used then the single-user shell is invoked with a dash as the first character in argv[0]. This causes the shell
process to behave as a login shell. The default is not to do this, so that the shell will not read /etc/profile or $HOME/.profile at
startup.
After the user exits the single-user shell, or presses control-D at the prompt, the system will (continue to) boot to the default runlevel.
ENVIRONMENT VARIABLES
sulogin looks for the environment variable SUSHELL or sushell to determine what shell to start. If the environment variable is not set, it
will try to execute root's shell from /etc/passwd. If that fails it will fall back to /bin/sh.
This is very valuable together with the -b option to init. To boot the system into single user mode, with the root file system mounted
read/write, using a special "fail safe" shell that is statically linked (this example is valid for the LILO bootprompt)
boot: linux -b rw sushell=/sbin/sash
FALLBACK METHODS
sulogin checks the root password using the standard method (getpwnam) first. Then, if the -e option was specified, sulogin examines these
files directly to find the root password:
/etc/passwd,
/etc/shadow (if present)
If they are damaged or nonexistent, sulogin will start a root shell without asking for a password. Only use the -e option if you are sure
the console is physically protected against unauthorized access.
AUTHOR
Miquel van Smoorenburg <miquels@cistron.nl>
SEE ALSO init(8), inittab(5).
17 Jan 2006 SULOGIN(8)