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print command

Syntax:

print str1 str2 ... 

Examples:

print Done with equilibration
print The system volume is now $v
print "The system volume is now $v" 

Description:

Print one or more text strings to the screen and logfile. The individual text strings are effectively concatenated into a single string, and one line of output is generated. Thus the 2nd and 3rd examples above are equivalent. If variables are included in any of the strings, they will be evaluated and their current values printed.

If you want the print command to be executed multiple times (with changing variable values), there are 3 options. First, consider using the fix print command, which will print a string periodically during a simulation. Second, the print command can be used as an argument to the every option of the run command. Third, the print command could appear in a section of the input script that is looped over (see the jump and next commands).

See the variable command for a description of equal style variables which are typically the most useful ones to use with the print command. Equal-style variables can calculate formulas involving mathematical operations, atom properties, group properties, thermodynamic properties, global values calculated by a compute or fix, or references to other variables.

Restrictions: none

Related commands:

fix print, variable

Default: none