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Pour lister les utilisateurs d'un système Linux RedHat 7, la commande 'lslogins' est disponible :

# lslogins
    UID USER              PROC PWD-LOCK PWD-DENY LAST-LOGIN GECOS
      0 root               126        0        0   16:16:30 root
      1 bin                  0        0        1            bin
      2 daemon               0        0        1            daemon
      3 adm                  0        0        1            adm
      4 lp                   0        0        1            lp
      5 sync                 0        0        1            sync
      6 shutdown             0        0        1   16:11:20 shutdown
      7 halt                 0        0        1            halt
      8 mail                 0        0        1            mail
     11 operator             0        0        1            operator
     12 games                0        0        1            games
     14 ftp                  0        0        1            FTP User
     52 puppet               0        0        1            Puppet
     59 tss                  0        0        1            Account used by the trousers packag
     74 sshd                 0        0        1            Privilege-separated SSH
     81 dbus                 0        0        1            System message bus
     89 postfix              0        0        1
     99 nobody               0        0        1            Nobody
    170 avahi-autoipd        0        0        1            Avahi IPv4LL Stack
    995 chrony               0        0        1
    996 sssd                 0        0        1            User for sssd
    997 polkitd              0        0        1            User for polkitd
    998 systemd-network      0        0        1            systemd Network Management
    999 systemd-bus-proxy    0        0        1            systemd Bus Proxy

 

La syntaxe officielle est donnée ci-dessous :

 

NAME
lslogins - display information about known users in the system

SYNOPSIS
lslogins [options] [-s|-u[=UID]] [-g groups] [-l logins]

DESCRIPTION
Examine the wtmp and btmp logs, /etc/shadow (if necessary) and /etc/passwd and output the desired data.

The default action is to list info about all the users in the system.

OPTIONS
Mandatory arguments to long options are mandatory for short options too.

-a, --acc-expiration
Display data about the date of last password change and the account expiration date (see shadow(5) for more info).
(Requires root privileges.)

--btmp-file path
Alternate path for btmp.

-c, --colon-separate
Separate info about each user with a colon instead of a newline.

-e, --export
Output data in the format of NAME=VALUE.

-f, --failed
Display data about the users' last failed login attempts.

-G, --supp-groups
Show information about groups.

-g, --groups=groups
Only show data of users belonging to groups. More than one group may be specified; the list has to be comma-sepa‐
rated.

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

-L, --last
Display data containing information about the users' last login sessions.

-l, --logins=logins
Only show data of users with a login specified in logins (user names or user IDS). More than one login may be
specified; the list has to be comma-separated.

-n, --newline
Display each piece of information on a separate line.

--noheadings
Do not print a header line.

--notruncate
Don't truncate output.

-o, --output list
Specify which output columns to print. Use --help to get a list of all supported columns.

-p, --pwd
Display information related to login by password (see also -afL).

-r, --raw
Raw output (no columnation).

-s, --system-accs
Show system accounts. These are by default all accounts with a UID below 1000 (non-inclusive), with the exception
of either nobody or nfsnobody (UID 65534). This hardcoded default maybe overwritten by parameters SYS_UID_MIN and
SYS_UID_MAX in the file /etc/login.defs.

--time-format type
Display dates in short, full or iso format. The default is short, this time format is designed to be space effi‐
cient and human readable.

-u, --user-accs
Show user accounts. These are by default all accounts with UID above 1000 (inclusive), with the exception of
either nobody or nfsnobody (UID 65534). This hardcoded default maybe overwritten by parameters UID_MIN and
UID_MAX in the file /etc/login.defs.

-V, --version
Display version information and exit.

--wtmp-file path
Alternate path for wtmp.

-Z, --context
Display the users' security context.

-z, --print0
Delimit user entries with a nul character, instead of a newline.


NOTES
The default UID thresholds are read from /etc/login.defs.


EXIT STATUS
0 if OK,

1 if incorrect arguments specified,

2 if a serious error occurs (e.g. a corrupt log).

SEE ALSO
group(5), passwd(5), shadow(5), utmp(5)

HISTORY
The lslogins utility is inspired by the logins utility, which first appeared in FreeBSD 4.10.

 

 

   
   
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