how to use su in a script Post: 302111121

5 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

create a shell script that calls another script and and an awk script

Hi guys I have a shell script that executes sql statemets and sends the output to a file.the script takes in parameters executes sql and sends the result to an output file. #!/bin/sh echo " $2 $3 $4 $5 $6 $7 isql -w400 -U$2 -S$5 -P$3 << xxx use $4 go print"**Changes to the table...

2. Shell Programming and Scripting

Script will keep checking running status of another script and also restart called script at night

I am using blow script :-- #!/bin/bash FIND=$(ps -elf | grep "snmp_trap.sh" | grep -v grep) #check snmp_trap.sh is running or not if then # echo "process found" exit 0; else echo "process not found" exec /home/Ketan_r /snmp_trap.sh 2>&1 & disown -h ...

3. UNIX for Dummies Questions & Answers

Calling a script from master script to get value from called script

I am trying to call a script(callingscript.sh) from a master script(masterscript.sh) to get string type value from calling script to master script. I have used scripts mentioned below. #masterscript.sh ./callingscript.sh echo $fileExist #callingscript.sh echo "The script is called"...

4. Shell Programming and Scripting

Shell script works fine as a standalone script but not as part of a bigger script

Hello all, I am facing a weird issue while executing a code below - #!/bin/bash cd /wload/baot/home/baotasa0/sandboxes_finance/ext_ukba_bde/pset sh UKBA_publish.sh UKBA 28082015 3 if then echo "Param file conversion for all the areas are completed, please check in your home directory"...

5. Shell Programming and Scripting

How to block first bash script until second bash script script launches web server/site?

I'm new to utilities like socat and netcat and I'm not clear if they will do what I need. I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes. I'm using Cygwin bash on Windows 10. My...

LEARN ABOUT DEBIAN

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, 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)