1  l3 pwd
    2  exit
    3  cd
    4  ls
    5  vim passwd
    6  view passwd
    7  ex passwd
    8  exit
    9  pwd
   10  cd
   11  ls
   12  pwd
   13  ls
   14  pwd
   15  ls
   16  pwd
   17  ls
   18  pwd
   19  ls
   20  ls -la
   21  /sbin/ifconfig
   22  exit
   23  su -
   24  cd
   25  cd /
   26  cd
   27  ls /etc/a{b,c,d}*
   28  ls /etc/a{b,c,d}* 2>/dev/null
   29  ls
   30  vim 12
   31  mkdir < 12
   32  ls
   33  touch < 12
   34  mv 12 ab
   35  touch < ab
   36*
   37  touch `cat ab`
   38  history