Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Syntax when using the 'exec' command
Top Forums UNIX for Advanced & Expert Users Syntax when using the 'exec' command Post 302985377 by jlliagre on Tuesday 8th of November 2016 04:26:55 PM
Old 11-08-2016
I slightly disagree.

The command:
Code:
sudo exec >> $logFile 2>&1

will have the current, likely non privileged shell, redirect both stdout and stderr of the sudo command to the file named "$logfile", then sudo will (try to) run the regular exec command with no argument.

As it is very unlikely for a regular exec command to exist in the first place, being meaningless as an external command and only implemented as a builtin, this triggers an error message stating "sudo: exec: command not found" or similar written in "$logfile".

This log file will belong to the regular user running the command (at least if it wasn't already existing), not root.
Last edited by jlliagre; 11-08-2016 at 05:43 PM..
This User Gave Thanks to jlliagre For This Post:
Don Cragun
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

using the -exec command

linux redhat 8.0 I am getting accustomed to using the -exec command to get around my databse.. and use it to edit and update files..! is this more apllicable than jumping from one directory to the other.. I have set up the databse so that the inode #'s are accessable and can get me from one... (0 Replies)
Discussion started by: moxxx68
0 Replies

2. Shell Programming and Scripting

exec command

hai i want know the difference between two shell scripts those are 1) a=2004 echo $a #output------2004 exec < inputfile while read line do echo $a #output-------2004 a=2005 echo $line echo $a ... (1 Reply)
Discussion started by: g_s_r_c
1 Replies

3. UNIX for Dummies Questions & Answers

Need help with -exec cp command.

I have a ksh script that contains the following: find /dir1/dir2 -type f -name "FILE.*" -newer /dir1/dir2/afterme.txt -exec cp /dir1/dir2/dir3 {} \; When I run it from the cli, it runs fine. When I run it from the ksh script I get find: missing argument to `-exec' I also tried -exec cp... (40 Replies)
Discussion started by: bbbngowc
40 Replies

4. Shell Programming and Scripting

exec command

can any one pls explain the meaning of exec 1<&5 ?? its urgent (2 Replies)
Discussion started by: santosh1234
2 Replies

5. Shell Programming and Scripting

exec command help

All, I am using below shell script to output the content to outputfile.txt. What I am looking for is in addition to outputfile.txt, I want the output to be on standard output too. exec > outputfile.txt echo "Starting " echo "ending" (5 Replies)
Discussion started by: basic_shell
5 Replies

6. Shell Programming and Scripting

exec command

How can I use the exec command to log my korn shell session to the screen and the log file? Currently I have this command: $exec 1> ${LOG} 2>&1 This logs the output to the log file only. I want it to go to the screen also. Is this possible with this command? thanks. (10 Replies)
Discussion started by: djehresmann
10 Replies

7. UNIX for Dummies Questions & Answers

Exec command

Hi can some one explain the following command , It would really help if some can really elloborate on what is happening out here export PATH | exec /bin/sh ./auto_approve :q P.S: This is the first time i am using exec ,so an elloboration what does it do and what is the use of the :q will be... (1 Reply)
Discussion started by: Sri3001
1 Replies

8. Shell Programming and Scripting

exec command help

Hi, I have the following lines in a script : . . exec < some_file . . . I have very little idea about exec command. I would like to know what this does and what will happen if the file some_file does not exist. Specifically, I would like to know whether the lines following this... (5 Replies)
Discussion started by: elixir_sinari
5 Replies

9. Shell Programming and Scripting

Exec command - what is it doing here?

Hi all, Forgive me for asking for help with my first post, but I am struggling here. I've been asked to translate a bash script into a Windows script (probably batch or powershell, not sure yet), so the first step is obviously understand what the bash script is doing. But I have no experience in... (5 Replies)
Discussion started by: el_foz
5 Replies

10. Shell Programming and Scripting

Linux find command seems to not transmit all the result to the '-exec command'

Hello. From a script, a command for a test is use : find /home/user_install -maxdepth 1 -type f -newer /tmp/000_skel_file_deb ! -newer /tmp/000_skel_file_end -name '.bashrc' -o -name '.profile' -o -name '.gtkrc-2.0' -o -name '.i18n' -o -name '.inputrc' Tha command... (3 Replies)
Discussion started by: jcdole
3 Replies

LEARN ABOUT DEBIAN

viewsudo

VIEW-OS(1)						      General Commands Manual							VIEW-OS(1)

NAME

       viewsudo - execute a command as another (virtual) user

SYNOPSIS

       viewsudo [-g groupname|#gid] [-u username|#uid] command

DESCRIPTION

       viewsudo allows a user to execute a command as the superuser or
	      another user in View-OS.

OPTIONS

       viewsudo accepts the following command line options:

       -g group
	   Normally,  viewsudo	sets the primary group to root.  The -g option causes sudo to run the specified command with the primary group set
	   to group.  To specify a gid instead of a group name, use #gid.  When running commands as a gid, many shells require	that  the  '#'	be
	   escaped  with  a  backslash	('[u2019]).   If  no -u option is specified, the command will be run as the invoking user (not root).	In
	   either case, the primary group will be set to group.

       -u user
	   The -u option causes viewsudo to run the specified command as a user other than root.  To specify a uid instead of  a  user	name,  use
	   #uid.  When running commands as a uid, many shells require that the '#' be escaped with a backslash ('[u2019]).

RETURN VALUES

       Upon successful execution of a program, the exit status from viewsudo will simply be the exit status of the program that was executed.

SEE ALSO

       viewsu(1), sudo(1), linux.defs(5)

AUTHORS

       View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli.
       <http://www.sourceforge.net/projects/view-os>

       Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>.

NOTE

       Most part of the text is taken from sudo(1).

VIEW-OS: a process with a view					  August 8, 2009							VIEW-OS(1)
All times are GMT -4. The time now is 03:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy