Skip to content

Repair of format #890

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Oct 6, 2022
Merged

Repair of format #890

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
403a565
Repair of format
jimcat8 Oct 6, 2022
4705483
Update 06-users.md
jimcat8 Oct 6, 2022
5ab4621
Update docs/books/admin_guide/06-users.md
EzequielBruni Oct 6, 2022
0559628
Update 06-users.md
EzequielBruni Oct 6, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
36 changes: 27 additions & 9 deletions docs/books/admin_guide/06-users.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -606,7 +606,7 @@ chown --reference=/etc/groups /etc/passwd
The command `gpasswd` allows to manage a group.

```
gpasswd [-a login] [-A login] [-d login] [-M login] group
gpasswd [option] group
```

Examples:
Expand All @@ -616,27 +616,35 @@ $ sudo gpasswd -A alain GroupA
[alain]$ gpasswd -a patrick GroupA
```

| Option | Description |
| ---------- | ------------------------------------ |
| `-a login` | Adds the user to the group. |
| `-A login` | Sets the group administrator. |
| `-d login` | Remove the user from the group. |
| `-M login` | Defines the complete list of guests.|
| Option | Description |
| ---------- | ------------------------------------ |
| `-a USER` | Adds the user to the group. For the added user, this group is a supplementary group. |
| `-A USER,...` | Set the list of administrative users. |
| `-d USER` | Remove the user from the group. |
| `-M USER,...` | Set the list of group members.|

The command `gpasswd -M` acts as a modification, not an addition.

```
# gpasswd GroupeA
New Password:
Re-enter new password:
```

!!! note

In addition to using `gpasswd -a` to add users to a group, you can also use the `usermod -G` or `usermod -AG` mentioned earlier.

### `id` command

The `id` command displays the group names of a user.

```
id login
id USER
```

Example:

```
$ sudo id alain
uid=1000(alain) gid=1000(GroupA) groupes=1000(GroupA),1016(GroupP)
Expand All @@ -645,10 +653,13 @@ uid=1000(alain) gid=1000(GroupA) groupes=1000(GroupA),1016(GroupP)
### `newgrp` command

The `newgrp` command allows you to temporarily use a secondary group for file creation.

```
newgrp [secondarygroups]
```

Example:

```
[alain]$ newgrp GroupB
```
Expand Down Expand Up @@ -714,20 +725,25 @@ When managing user accounts by shell script, it may be useful to set a default p
This can be done by passing the password to the `passwd` command.

Example:

```
$ sudo echo "azerty,1" | passwd --stdin philippe
```

!!! Warning

The password is entered in clear text, `passwd` takes care of encrypting it.

### `chage` command

The `chage` command is used to manage the account strategy.

```
chage [-d date] [-E date] [-I days] [-l] [-m days] [-M days] [-W days] [login]
```

Example:

```
$ sudo chage -m 60 -M 90 -W 80 -I 10 alain
```
Expand All @@ -747,6 +763,7 @@ The `chage` command also offers an interactive mode.
The `-d` option forces the password to be changed at login.

Examples:

```
$ sudo chage philippe
$ sudo chage -d 0 philippe
Expand Down Expand Up @@ -798,6 +815,7 @@ This file is modified by the command `useradd -D` (`useradd -D` entered without
In order for the `useradd` command to retrieve the value of the `GROUP` field from the `/etc/default/useradd` file, you must specify the `-N` option.

Example:

```
$ sudo useradd -u 501 -N GroupeA
```
Expand All @@ -809,7 +827,7 @@ This file contains many default parameters useful for creating or modifying user
* Mailboxes;
* Passwords;
* UID and GID;
* Umask ;
* Umask;
* Connections;
* Terminals.

Expand Down