Bonjour,
Merci de votre aide, voici les détails:
[root@localhost ~]# $PATH
bash: /usr/bin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin/:/usr/games:/usr/local/Java/jdk1.5.0_08/bin:/usr/local/Ada_2006/bin:/home/arnaud/bin:/usr/local/Java/jdk1.5.0_08/bin:/usr/local/Ada_2006/bin:/usr/local/Java/jdk1.5.0_08/bin:/usr/local/Ada_2006/bin: Aucun fichier ou répertoire de ce type
/usr/sbin
[root@localhost sbin]# urpmi.addmedia
bash: urpmi.addmedia: command not found
/etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/bin/sh
daemon:x:2:2:daemon:/sbin:/bin/sh
adm:x:3:4:adm:/var/adm:/bin/sh
lp:x:4:7:lp:/var/spool/lpd:/bin/sh
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/bin/sh
news:x:9:13:news:/var/spool/news:/bin/sh
uucp:x:10:14:uucp:/var/spool/uucp:/bin/sh
operator:x:11:0:operator:/var:/bin/sh
games:x:12:100:games:/usr/games:/bin/sh
nobody:x:65534:65534:Nobody:/:/bin/sh
rpm:x:13:101:system user for rpm:/var/lib/rpm:/bin/false
messagebus:x:14:105:system user for dbus:/:/sbin/nologin
haldaemon:x:15:106:system user for hal:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
xfs:x:70:70:system user for xorg-x11:/etc/X11/fs:/bin/false
clamav:x:71:71:system user for clamav:/var/lib/clamav:/bin/sh
user:x:500:500:User:/home/user:/bin/bash
whoami
[root@localhost ~]# whoami
root
[root@localhost ~]# echo $UID
0 ?????
[user@localhost ~]$ whoami
user
[user@localhost ~]$ echo $UID
500
L'Open source et Linux sont l'avenir de l'informatique ;-)