2006-09-22 00:22:34 +08:00
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<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
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<HR>
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<H3>print command
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</H3>
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<P><B>Syntax:</B>
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</P>
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2010-01-20 04:04:41 +08:00
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<PRE>print str1 str2 ...
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2006-09-22 00:22:34 +08:00
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</PRE>
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2010-01-20 04:04:41 +08:00
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<UL><LI>str1,str2,...,strN = one or more text strings to print, which may contain variables
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2006-09-22 00:22:34 +08:00
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</UL>
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<P><B>Examples:</B>
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</P>
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2010-01-20 04:04:41 +08:00
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<PRE>print Done with equilibration
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print The system volume is now $v
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2007-12-13 22:33:12 +08:00
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print "The system volume is now $v"
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2006-09-22 00:22:34 +08:00
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</PRE>
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<P><B>Description:</B>
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</P>
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2010-01-20 04:04:41 +08:00
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<P>Print one or more text strings to the screen and logfile. The
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individual text strings are effectively concatenated into a single
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string, and one line of output is generated. Thus the 2nd and 3rd
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examples above are equivalent. If variables are included in any of
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the strings, they will be evaluated and their current values printed.
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2007-02-10 05:37:30 +08:00
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</P>
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<P>If you want the print command to be executed multiple times (with
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changing variable values), there are 3 options. First, consider using
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2008-01-03 03:25:15 +08:00
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the <A HREF = "fix_print.html">fix print</A> command, which will print a string
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2007-02-10 05:37:30 +08:00
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periodically during a simulation. Second, the print command can be
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used as an argument to the <I>every</I> option of the <A HREF = "run.html">run</A>
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command. Third, the print command could appear in a section of the
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2008-01-03 03:25:15 +08:00
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input script that is looped over (see the <A HREF = "jump.html">jump</A> and
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<A HREF = "next.html">next</A> commands).
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2007-02-10 05:37:30 +08:00
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</P>
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<P>See the <A HREF = "variable.html">variable</A> command for a description of <I>equal</I>
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style variables which are typically the most useful ones to use with
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2007-12-13 22:33:12 +08:00
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the print command. Equal-style variables can calculate formulas
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involving mathematical operations, atom properties, group properties,
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2008-03-01 09:13:20 +08:00
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thermodynamic properties, global values calculated by a
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2007-12-13 22:33:12 +08:00
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<A HREF = "compute.html">compute</A> or <A HREF = "fix.html">fix</A>, or references to other
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<A HREF = "variable.html">variables</A>.
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2006-09-22 00:22:34 +08:00
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</P>
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<P><B>Restrictions:</B> none
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</P>
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<P><B>Related commands:</B>
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</P>
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<P><A HREF = "fix_print.html">fix print</A>, <A HREF = "variable.html">variable</A>
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</P>
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<P><B>Default:</B> none
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</P>
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</HTML>
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