Variables for Effective Username? Post: 23856

8 More Discussions You Might Find Interesting

1. Cybersecurity

Changing effective user

I would like to give execution rights for a script to one user. (that's the easy part...) When that user is running the script, I would like the effective user ID to be that of the file-owner. Is this possible?

2. UNIX for Dummies Questions & Answers

most effective search ?

what's the most efficient and effective search for a file in a dir ? I see many guys use this # find - print or something as such ? and sometimes pipe it to something else ? Is there a better way of using "grep" in all of this ? thanks simon2000

3. UNIX for Dummies Questions & Answers

Changing the Effective Group ID

Here is my situation. On a RedHat 7.3 box, I have a user named jody. When I log in with jody and type in "id", I get the expected output: uid=1(jody) gid=1(jody) groups=1(jody), 510(test) However, I cannot figure which "id" option allows me to change the effective gid. I tried the options...

4. Shell Programming and Scripting

what is the most effective way to process a large logfile?

I am dealing with a very large firewall logfile (more than 10G), the logfile like this *snip* Nov 9 10:12:01 testfirewall root: Nov 9 10:12:01 testfirewall root: 0:00:11 accept testfw01-hme0 >hme0 proto: icmp; src: test001.example.net; dst: abc.dst.net; rule: 1; icmp-type: 8;...

5. UNIX for Dummies Questions & Answers

Real and Effective IDs

Can anyone explain me in details of Real and Effective IDs

6. UNIX for Dummies Questions & Answers

[Solved] effective user id upon exec

Hello all. Despite the exec man page, the exec system call seems to turn my effective-user-id into my real-user-id. I coded and compiled 2 very simple c programs as user 1 (uid=501) The first one (A) prints real and effective user IDs and then execs the second one (B), which in turn prints...

7. Cybersecurity

Password rules not effective

I was looking for a good list of words to exclude people from using as passwords, i.e. those that could be guessed easily. I'm working through a whole bunch of suggestions from skullsecurity.org, but I managed to find this page that seems to suggest I have more options than I thought. :b: I...

8. UNIX for Beginners Questions & Answers

Why does "ps -[u|U] username" not list processes when username is numeric?

Greetings, The title pretty much says it all. I've snooped everywhere and can't find anything on this. Since our organization went to numeric usernames, using the u|U option for ps returns no processes. Example passwd entry: 320074:DjZAJKXun8HBs:10129:6006:Joe Y:/cadhome/analysis/jy:/bin/bash...

LEARN ABOUT PHP

chsh

CHSH(1) 							   User Commands							   CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

       -h, --help
	   Display help message and exit.

       -R, --root CHROOT_DIR
	   Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
	   The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
	   User account information.

       /etc/shells
	   List of valid login shells.

       /etc/login.defs
	   Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.5						    01/25/2018								   CHSH(1)