www@iZ236j3sofdZ:~$ ifconfig

Command 'ifconfig' is available in '/sbin/ifconfig'

The command could not be located because '/sbin' is not included in the PATH environment variable.

This is most likely caused by the lack of administrative privileges associated with your user account.

ifconfig: command not found

# /etc/profile: system-wide .profile file for the Bourne shell (sh())

# and Bourne compatible shells (bash(), ksh(), ash(), ...).

if [ "$PS1" ]; then

  if [ "$BASH" ] && [ "$BASH" != "/bin/sh" ]; then

    # The file bash.bashrc already sets the default PS1.

    # PS1='\h:\w\$ '

    if [ -f /etc/bash.bashrc ]; then

      . /etc/bash.bashrc

    fi

  else

    if [ "`id -u`" -eq  ]; then

      PS1='# '

    else

      PS1='$ '

    fi

  fi

fi

# The default umask is now handled by pam_umask.

# See pam_umask() and /etc/login.defs.

if [ -d /etc/profile.d ]; then

  for i in /etc/profile.d/*.sh; do

    if [ -r $i ]; then

      . $i

    fi

  done

  unset i

fi

www is not in the sudoers file.  This incident will be reported.

# User privilege specification

root    ALL=(ALL:ALL) ALL

www     ALL=(ALL)     ALL   # 增加www用户这一行既可以了

# Members of the admin group may gain root privileges

%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command

%sudo   ALL=(ALL:ALL) ALL