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why sudo doesn't work?

 
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Top Forums UNIX for Dummies Questions & Answers why sudo doesn't work?
# 1  
Old 03-12-2010
why sudo doesn't work?
Code:
[test@manager ~]$ sudo -l
User test may run the following commands on this host:
    (ALL) ALL
[test@manager ~]$ sudo ls /root
anaconda-ks.cfg  Desktop      install.log.syslog                     l.of             page.html  VTune
cpi              ex           intel                                  mpd.hosts        #te.c#     workspace
cpi.c            ex1.c        libxrdisk_1_BPET46J_02_09_14.so.1.0.0  my_page          te.c       x
deli             install.log  list_disk_space_used_by_users.sh       mysqlaccess.log  test       xCATdb-dump
[test@manager ~]$ sudo useradd myuser
sudo: useradd: command not found
[test@manager ~]$

command "sudo ls" works, but why "sudo useradd myuser" doesn't work??
# 2  
Old 03-12-2010
Probably because useradd isn't in your path and has to be called using the full path (eg /usr/sbin/useradd). The reason simply is that sudo doesn't change the environment in any way, it just performs an ID change.
# 3  
Old 03-15-2010
You are correct.
But if I want to use command sudo cd /root ,
how do I use the full path of command cd?
Code:
[test@manager proc]$ whereis cd
cd: /usr/share/man/man1/cd.1.gz /usr/share/man/man1p/cd.1p.gz /usr/share/man/mann/cd.n.gz

I cann't know the full path of cd Smilie


Thanks!
# 4  
Old 03-16-2010
That's because cd isn't a program, but a shell-builtin. Always. It wouldn't be useful as a standalone utility, as it can't change the working directory of any other program.
# 5  
Old 03-19-2010
Just edit .profile and find your path and add /sbin , relaunch a shell and try it again.
 
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