|
|
Sponsored Content
Top Forums
UNIX for Advanced & Expert Users
su (-) command
Post 27769 by Kelam_Magnus on Friday 6th of September 2002 12:32:27 PM
09-06-2002
IMHO, I think you need to restrict root access more. But that's just me. 
Also, typically you don't need to use su - root. You can just type su - and this will fault to root, at least on HPUX. You only need to specify su - username for any other user besides root. Again this is my experience on HPUX.
Your answer is to alias su to su -, which you probably already figured out. You can overwrite a command by aliasing it. When you remove the alias the original command takes over again.
alias su=`su -`#syntax depends on OS version #those are backtics
Also, typically you don't need to use su - root. You can just type su - and this will fault to root, at least on HPUX. You only need to specify su - username for any other user besides root. Again this is my experience on HPUX.
Your answer is to alias su to su -, which you probably already figured out. You can overwrite a command by aliasing it. When you remove the alias the original command takes over again.
alias su=`su -`#syntax depends on OS version #those are backtics
|
|
10 More Discussions You Might Find Interesting
1. SuSE
Sir,
I using the following commands in a file (part of a bigger script):
#!/bin/bash
cd /opt/oracle/bin
ls -lt | tail -1 | awk '{print $6}' >> /tmp/ramb.out
If I run this from the command prompt the result is:
2007-05-16
if I run it as a cron job then... (5 Replies)
Discussion started by: rajranibl
5 Replies
2. Shell Programming and Scripting
Hi ,
I have a piece of code ...wherein I need to assign the following ...
1) A command line argument to a variable
e.g origCount=ARGV
2) A unix command to a variable
e.g result=`wc -l testFile.txt`
in my awk shell script
When I do this :
print "origCount" origCount --> I get the... (0 Replies)
Discussion started by: sweta_doshi
0 Replies
3. AIX
AIX:Command to get netaddress/subnet address command in IPv4/IP6
Can anybody help us with a command to retrieve netaddress/subnet address command in IPv4/IP6 on aix machine.
net/subnet address is in the format 172.16.212.0(signifies all 255 machines in an IPv4 network) (2 Replies)
Discussion started by: rookie8278
2 Replies
4. Shell Programming and Scripting
Hi everyone,
when executing this command in unix:
echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error.
here is content of my script:
tdbsrvr$ vi hc.sh
"hc.sh" 22 lines, 509... (4 Replies)
Discussion started by: 4dirk1
4 Replies
5. UNIX for Advanced & Expert Users
Hi,
Well my title isn't very clear I think. So to understand my goal:
I have a script "test1"
#!/bin/bash
xvkbd -text blabla
with xbindkeys, I bind F5 key in order it runs my test1 script
So when I press F5, test1 runs.
I'm under Emacs/Vi and I press F5 in order to have "blabla" be... (0 Replies)
Discussion started by: xib.be
0 Replies
6. UNIX for Dummies Questions & Answers
HI Guys,
I hope you are well. I am trying to write a script that gets executed every time i open a shell (cshell). I have two questions about that
1) I need to enter these commands
$ echo $DISPLAY
$ setenv $DISPLAY output_of_echo_$display_command
How can i write a... (2 Replies)
Discussion started by: kaaliakahn
2 Replies
7. Shell Programming and Scripting
I am working with a sh script on a solaris 9 zone (sol 10 host) that grabs information to build the configuration command line. the variables Build64, SSLopt, CONFIGopt, and CC are populated in the script. the script includes
CC=`which gcc`
CONFIGopt=' --prefix=/ --exec-prefix=/usr... (8 Replies)
Discussion started by: oly_r
8 Replies
8. Shell Programming and Scripting
below is the output xml string from some other command and i will be parsing it using awk
cat /tmp/alerts.xml
<Alert id="10102" name="APP-DS-ds_ha-140018-componentFailure-S" alertDefinitionId="13982" resourceId="11427" ctime="1359453507621" fixed="false" reason="If Event/Log Level(ANY) and... (2 Replies)
Discussion started by: vivek d r
2 Replies
9. AIX
exec(): 0509-036 Cannot load program /usr/opt/freeware/bin/rpm because of the following errors:
0509-022 Cannot load module /opt/freeware/lib/libintl.a(libintl.so.1).
0509-150 Dependent module /opt/freeware/lib/libiconv.a(shr4.o) could not be loaded.
0509-152 Member... (4 Replies)
Discussion started by: Ohmkar
4 Replies
10. UNIX for Beginners Questions & Answers
Hello Forum,
I'm making very good progress on my report thanks to the very helpful people on this forum. I've been able to successfully create my report for my Red Hat servers. But I do have a few ubuntu servers in the mix and I'd like to capture some data from them when an ssh connection is... (8 Replies)
Discussion started by: greavette
8 Replies
LEARN ABOUT REDHAT
sulogin
SULOGIN(8) Linux System Administrator's Manual SULOGIN(8) NAME
sulogin -- Single-user login SYNOPSIS
sulogin [ -e ] [ -p ] [ -t timeout ] [ tty-device ] DESCRIPTION
sulogin can be 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 it is passed the -b flag from the bootmonitor (eg, LILO). The user is prompted Give root password for system maintenance (or type Control-D for normal startup): sulogin will connected to the current terminal, or to the optional device that can be specified on the command line (typically /dev/con- sole). If the -p flag was set, the single-user shell will be invoked with a dash as the first character in argv[0]. That will cause most shells 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 flag to init. To boot the system into single user mode, with the root file system mounted read/write, using a special "failsafe" 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 methods first. If the -e option was specified, sulogin examines the next files to find the root password. If they are damaged, or non-existant, it will use fallback methods that even go so far as to provide you with a shell prompt without asking for the root password if they are irrepairably damaged. /etc/passwd, /etc/shadow (if present) AUTHOR
Miquel van Smoorenburg <miquels@cistron.nl> SEE ALSO
init(8), inittab(5). 11 Sep 2000 SULOGIN(8)