Sponsored Content
Operating Systems Linux Syntax error in one line in sudoer file cause total failure Post 302913763 by Perderabo on Tuesday 19th of August 2014 04:30:17 PM
Old 08-19-2014
Quote:
Originally Posted by programAngel
Then why not just ignore from misconfigured lines
Suppose it did that. There are still errors you can make that render sudo usuable like "chmod 0 /usr/bin/sudo". As a sysadmin you need to be ready for that and be able to operate when sudo fails.

Here is one trick: When you are fiddling around as root on a system, keep an emergency window with a root prompt ready. Don't close this window until you are sure it is not needed. But don't use it until you must. This "extra root window" trick has saved me a lot of grief. Smilie
This User Gave Thanks to Perderabo For This Post:
 

10 More Discussions You Might Find Interesting

1. Solaris

syntax error at line 59: `end of file' unexpected

Hello... I'm trying to run the sshd script, but I keep geting the Syntax errot message . Here's the last few lines on the script. set nu in vi shows 58 lines, but I keep getting error referring to line 59. Any help is appreciated. Thanks, Remi else echo... (4 Replies)
Discussion started by: Remi
4 Replies

2. Shell Programming and Scripting

Help on shell script : syntax error at line 62: `end of file' unexpected

Hi All, I have written a korn script (code pasted below). It is giving the error while debugging "new.sh: syntax error at line 62: `end of file' unexpected". I have re-written the whole code in VI and explored all help related to this error on this Unix forum and tried it. Somehow, I could... (7 Replies)
Discussion started by: schandrakar1
7 Replies

3. Shell Programming and Scripting

mkmkfiles.imake: line 51: syntax error: unexpected end of file

Hi, i am installing glut-3.5 using that ./mkmkfiles.imake its showing an error msg as root@lxdevenv:~/Desktop/openGL/glut-3.5# ./mkmkfiles.imake ./mkmkfiles.imake: line 51: syntax error: unexpected end of file root@lxdevenv:~/Desktop/openGL/glut-3.5# actually there are 49 lines in... (3 Replies)
Discussion started by: Ravikishore
3 Replies

4. Shell Programming and Scripting

syntax error at line 752: `end of file' unexpected

Hi, I'm having a syntax error at line 752: `end of file' unexpected. However, i didn't make any changes on line 752. I just inserted a new code in an existing program. Can anyone please check if there is something wrong with my code: if then lline=`tail -5 $badfile` ... (3 Replies)
Discussion started by: chryz
3 Replies

5. Shell Programming and Scripting

./TRUNCATE-PS_TXN.sh: line 54: syntax error: unexpected end of file

Hi All , My below script is for chacking vaule and then trucating table : ___________ test4@aceuatcs04:/u01/test4/SOLID/Testscript>cat TRUNCATE-PS_TXN.sh #-------------------------------------------------------------------- # Created by:Kaushlesh Yadav # Generated on: 15/07/2010 # Job... (4 Replies)
Discussion started by: kaushelsh168
4 Replies

6. Shell Programming and Scripting

Need help line 35: syntax error: unexpected end of file only 34 lines of code

I am not sure what I am doing wrong here, I did some research and only confused myself further. Any help would be greatly appreciated. I need to make this work for work tomorrow. There are only 34 lines of code in this script, yet its complaining about line 35 Here is the code: ... (7 Replies)
Discussion started by: BkontheShell718
7 Replies

7. Shell Programming and Scripting

EOF Usage - line 56: syntax error: unexpected end of file

Below is a test script I'm writing in the process of learning to write script. When I try to run it I get an unexpected end of file error on line 56. Thoughts? SCRIPT: #!/bin/bash # system_page - A script to produce a system information HTML file ##### Constants TITLE="My System... (1 Reply)
Discussion started by: mpercy725
1 Replies

8. Shell Programming and Scripting

line 15: syntax error: unexpected end of file

Hi all, I am very new to programming and even newer to this forum as well, so I apologize if this should have been in the Newbie category, but... I am currently trying to figure out Shell Scripting and am running into problems early. Not having taken any kind of programming class, I am not even... (2 Replies)
Discussion started by: ccorder22
2 Replies

9. Red Hat

sh: module: line 1: syntax error: unexpected end of file

Hi, We have installed linux6(RHEL) OS and installed datastage application on that. First time installation worked fine and our all services related to datastage was up and running. When we stopped the datastage and restarted its giving below error while restart:- ./uv -admin -start DataStage... (0 Replies)
Discussion started by: prasson_ibm
0 Replies

10. Shell Programming and Scripting

Del: line 13: syntax error: unexpected end of file

1 echo -e "Enter a filename" 2 read filename 3 if 4 then 5 echo -e "do you want to delete?" 6 read answer 7 if 8 then rm myfirst 9 else 10 echo -e "file not deleted" 11 fi 12 exit0 (1 Reply)
Discussion started by: Speedy
1 Replies
VISUDO(1m)						       MAINTENANCE COMMANDS							VISUDO(1m)

NAME
visudo - edit the sudoers file SYNOPSIS
visudo [-c] [-q] [-s] [-V] [-f sudoers] DESCRIPTION
visudo edits the sudoers file in a safe fashion, analogous to vipw(1m). visudo locks the sudoers file against multiple simultaneous edits, provides basic sanity checks, and checks for parse errors. If the sudoers file is currently being edited you will receive a message to try again later. There is a hard-coded list of editors that visudo will use set at compile-time that may be overridden via the editor sudoers Default vari- able. This list defaults to the path to vi(1) on your system, as determined by the configure script. Normally, visudo does not honor the VISUAL or EDITOR environment variables unless they contain an editor in the aforementioned editors list. However, if visudo is configured with the --with-enveditor flag or the env_editor Default variable is set in sudoers, visudo will use any the editor defines by VISUAL or EDITOR. Note that this can be a security hole since it allows the user to execute any program they wish simply by setting VISUAL or EDI- TOR. visudo parses the sudoers file after the edit and will not save the changes if there is a syntax error. Upon finding an error, visudo will print a message stating the line number(s) where the error occurred and the user will receive the "What now?" prompt. At this point the user may enter "e" to re-edit the sudoers file, "x" to exit without saving the changes, or "Q" to quit and save changes. The "Q" option should be used with extreme care because if visudo believes there to be a parse error, so will sudo and no one will be able to sudo again until the error is fixed. If "e" is typed to edit the sudoers file after a parse error has been detected, the cursor will be placed on the line where the error occurred (if the editor supports this feature). OPTIONS
visudo accepts the following command line options: -c Enable check-only mode. The existing sudoers file will be checked for syntax and a message will be printed to the standard output detailing the status of sudoers. If the syntax check completes successfully, visudo will exit with a value of 0. If a syntax error is encountered, visudo will exit with a value of 1. -f Specify and alternate sudoers file location. With this option visudo will edit (or check) the sudoers file of your choice, instead of the default, /etc/sudoers. The lock file used is the specified sudoers file with ".tmp" appended to it. -q Enable quiet mode. In this mode details about syntax errors are not printed. This option is only useful when combined with the -c flag. -s Enable strict checking of the sudoers file. If an alias is used before it is defined, visudo will consider this a parse error. Note that it is not possible to differentiate between an alias and a hostname or username that consists solely of uppercase letters, digits, and the underscore ('_') character. -V The -V (version) option causes visudo to print its version number and exit. ENVIRONMENT
The following environment variables are used only if visudo was configured with the --with-env-editor option: VISUAL Invoked by visudo as the editor to use EDITOR Used by visudo if VISUAL is not set FILES
/etc/sudoers List of who can run what /etc/sudoers.tmp Lock file for visudo DIAGNOSTICS
sudoers file busy, try again later. Someone else is currently editing the sudoers file. /etc/sudoers.tmp: Permission denied You didn't run visudo as root. Can't find you in the passwd database Your userid does not appear in the system passwd file. Warning: undeclared Alias referenced near ... Either you are using a {User,Runas,Host,Cmnd}_Alias before defining it or you have a user or hostname listed that consists solely of uppercase letters, digits, and the underscore ('_') character. If the latter, you can ignore the warnings (sudo will not complain). In -s (strict) mode these are errors, not warnings. Warning: runas_default set after old value is in use ... You have a runas_default Defaults setting listed in the sudoers file after its value has already been used. This means that entries prior to the runas_default setting will match based on the default value of runas_default (root) whereas entries after the runas_default setting will match based on the new value. This is usually unintentional and in most cases the <runas_default> setting should be placed before any Runas_Alias or User specifications. In -s (strict) mode this is an error, not a warning. SEE ALSO
vi(1), sudoers(4), sudo(1m), vipw(8) AUTHOR
Many people have worked on sudo over the years; this version of visudo was written by: Todd Miller See the HISTORY file in the sudo distribution or visit http://www.sudo.ws/sudo/history.html for more details. CAVEATS
There is no easy way to prevent a user from gaining a root shell if the editor used by visudo allows shell escapes. BUGS
If you feel you have found a bug in visudo, please submit a bug report at http://www.sudo.ws/sudo/bugs/ SUPPORT
Limited free support is available via the sudo-users mailing list, see http://www.sudo.ws/mailman/listinfo/sudo-users to subscribe or search the archives. DISCLAIMER
visudo is provided ``AS IS'' and any express or implied warranties, including, but not limited to, the implied warranties of merchantabil- ity and fitness for a particular purpose are disclaimed. See the LICENSE file distributed with sudo or http://www.sudo.ws/sudo/license.html for complete details. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+----------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+----------------------+ |Availability | SUNWsudor, SUNWsudou | +--------------------+----------------------+ |Interface Stability | Uncommitted | +--------------------+----------------------+ NOTES
sudo does not create audit(2) records; for a Role Based administration solution that performs auditing of all actions, please refer to rbac(5). Source for sudo is available on http://opensolaris.org. 1.6.9p17 Jun 21, 2008 VISUDO(1m)
All times are GMT -4. The time now is 07:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy