Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

sg(1) [debian man page]

SG(1)								   User Commands							     SG(1)

NAME
sg - execute command as different group ID SYNOPSIS
sg [-] [group [-c ] command] DESCRIPTION
The sg command works similar to newgrp but accepts a command. The command will be executed with the /bin/sh shell. With most shells you may run sg from, you need to enclose multi-word commands in quotes. Another difference between newgrp and sg is that some shells treat newgrp specially, replacing themselves with a new instance of a shell that newgrp creates. This doesn't happen with sg, so upon exit from a sg command you are returned to your previous group ID. CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool: SYSLOG_SG_ENAB (boolean) Enable "syslog" logging of sg activity. FILES
/etc/passwd User account information. /etc/shadow Secure user account information. /etc/group Group account information. /etc/gshadow Secure group account information. SEE ALSO
id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5). shadow-utils 4.1.5.1 05/25/2012 SG(1)

Check Out this Related Man Page

SG(1)                                                              User Commands                                                             SG(1)

NAME
sg - execute command as different group ID SYNOPSIS
sg [-] [group [-c ] command] DESCRIPTION
The sg command works similar to newgrp but accepts a command. The command will be executed with the /bin/sh shell. With most shells you may run sg from, you need to enclose multi-word commands in quotes. Another difference between newgrp and sg is that some shells treat newgrp specially, replacing themselves with a new instance of a shell that newgrp creates. This doesn't happen with sg, so upon exit from a sg command you are returned to your previous group ID. CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool: SYSLOG_SG_ENAB (boolean) Enable "syslog" logging of sg activity. FILES
/etc/passwd User account information. /etc/shadow Secure user account information. /etc/group Group account information. /etc/gshadow Secure group account information. SEE ALSO
id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5). shadow-utils 4.5 01/25/2018 SG(1)
Man Page

15 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Command history

Hello everyone, I am aware about the history command we use in bash. Just had a question regarding the history of commands. Is there any way i can limit my commands to be remembered or is there any way to delete the commands used by myself? Thank you (8 Replies)
Discussion started by: a25khan
8 Replies

2. UNIX for Dummies Questions & Answers

newgrp in a script

I want to do these commands in a script: if the user name is 'toto' then the user switch to the group toto_group and then 2 others scripts are launched. Unfortunately, after the command 'newgrp' the 2 scripts are not launched correctly. But if I do the same, by hand, one line per one line, it... (11 Replies)
Discussion started by: Nathe
11 Replies

3. UNIX for Advanced & Expert Users

use email subject line as shell command

If anyone can give me some ideas on this it would be great. What I'm trying to do is to have emails be sent to my unix account. Once they are emailed to the unix account, I want to use the text in the subject field to invoke a shell script, so basically I need to find a way that I can... (4 Replies)
Discussion started by: mskarica
4 Replies

4. Shell Programming and Scripting

Need help with the syntax using awk+grep

Hi, I need to extract information from a 4 GB file based on the following conditions: 1) Check for the presence of a set of account numbers Each account number is present along with other information within a PAGESTART and PAGEEND. The file looks like this: PAGESTART ACCOUNT NO 123... (6 Replies)
Discussion started by: kthri
6 Replies

5. UNIX for Advanced & Expert Users

Unix Doubt

What is Primary Group & Secondary group and what is the difference between them. (5 Replies)
Discussion started by: harishankar
5 Replies

6. Shell Programming and Scripting

Shellscript to Sudo other account

Hi, I have to write a shell script to sudo other account. Foreg, i am working in account ramdev1, i have a sudo access where through shell script i need to sudo another account ramdev2 and read a file "ram.inc" get those data and save it in a .txt file and return it? Since i am new to... (21 Replies)
Discussion started by: sachin.tendulka
21 Replies

7. Shell Programming and Scripting

while loop issues

Hi guys, Been sifting through these forums for awhile, but never had an account or needed to post. Shoutouts to a great forum with heaps of useful info. Now i consider myself a noob when it comes to linux and to bash scripting. I recently started to learn to use Vmware ESX server which uses... (4 Replies)
Discussion started by: ryath
4 Replies

8. HP-UX

Previous command

Hi, i would like to retrieve (only retrieve, not execute) a previous command which i executed on the command prompt. I tried the 'up arrow' key, but its not working. Instead,it showed me some funny characters. I searched around and i found the way to do it was using the way below. Several... (5 Replies)
Discussion started by: new2ss
5 Replies

9. Shell Programming and Scripting

Join, GREP

Hi All, I have 2 file. ACC_NUM contains only account numbers & ACC_DETAIL contains all information including account number seperated by ~ delimiter. i am serching the account number in ACC_DETAIL from ACC_NUM. If it is exist, then copy all information in ACC_DETAIL_NEW file. For that i... (7 Replies)
Discussion started by: Amit.Sagpariya
7 Replies

10. Shell Programming and Scripting

Understanding Logic and Flow better

i am in an epic quagmire of horrid misunderstanding. its been a while since ive been in the scene, couldnt remember my login for the account i used to have here, so excuse the 1st post. i dont want it to seem like ima post n boogy. in any case here we go: just recently installed mandriva... (6 Replies)
Discussion started by: SirDonkeyPunch
6 Replies

11. Shell Programming and Scripting

command to group records

hi, i have records like this supplier,product, persons involved 10,150,ravi@yahoo.com 30,200,ravi@yahoo.com 20,111,payal@gmail.com 40,211,ravi@yahoo.com i want to write a command which displays values like this 10,30,40,ravi@yahoo.com for ravi@yahoo.com if there are n number of... (7 Replies)
Discussion started by: trichyselva
7 Replies

12. UNIX for Dummies Questions & Answers

Root account!

Is it possible to create more than one root account? Thanks, Jorge (4 Replies)
Discussion started by: jofonseca99
4 Replies

13. Shell Programming and Scripting

Unique account id file

I have a fixed length file (each record of 288 characters). The unique id in each record is account_id which is from position 1:30 My file is having duplicate account ids ( records having same account id). However the information except account_id can be different. ( Most of the records... (5 Replies)
Discussion started by: varunrbs
5 Replies

14. Red Hat

How to list shell of account?

Hello. I have been trying to figure out something very simple that I know I've done before; which is list the shell of a specific account. In this case it is the account: "news". I know how to change the shell using chsh, just not list it. I want output like "/bin/sh" only. Any thoughts or... (5 Replies)
Discussion started by: austinharris43
5 Replies

15. Shell Programming and Scripting

User Logging

Hi, I have several engineers logging into servers with the same system username and passwords eg root. I was thinking about adding a script to bashrc where a user is forced upon login to enter their name and once that has executed there history is logged/redirected to a log file somewhere. I... (10 Replies)
Discussion started by: maxwellhouse
10 Replies