Question

READ DATA is a pair of commands

Answer 1

Answer:

sss. thats right /; Dutt Digg

Answer 2

file = name of the data file to read in

zero or more keyword/arg pairs may be appended

keyword = add or offset or shift or extra/atom/types or extra/bond/types

Explanation:

Read in a data file containing information LAMMPS needs to run a simulation. The file can be ASCII text or a gzipped text file that is detected by a .gz suffix. This is one of 3 ways to specify initial atom coordinates; see the read_restart and create_atoms commands for alternative methods.

Also, see the explanation of the -restart command-line switch which can convert a restart file to a data file.

This command can be used multiple times to add new atoms and their properties to an existing system by using the add, offset, and shift keywords.