xlo,xhi,ylo,yhi,zlo,zhi

[111245]

I don’t understand xlo,xhi,ylo,yhi,zlo,zhi

[akohlmey]

I don't understand xlo,xhi,ylo,yhi,zlo,zhi

​how about you try this:
http://lmgtfy.com/?q=xlo%2Cxhi%2Cylo%2Cyhi%2Czlo%2Czhi​

[_James_Kress]

Read:

http://lammps.sandia.gov/doc/Section_howto.html#howto-12

Jim