title: Simple file legend in Xmgrace
body: <p>I am using xmgrace to plot several graphs on a shared axed, from a two-column data file like so:</p>
  
  <pre><code>@    title "RMSD"
  @    xaxis  label "Time (ns)"
  @    yaxis  label "RMSD (nm)"
  @TYPE xy
  @ subtitle "C-alpha after lsq fit to C-alpha"
     1.7125001    0.0005074
     1.7225001    0.0635904
     1.7325001    0.0747008
     1.7425001    0.0707590
     1.7525001    0.0821623
     1.7625000    0.0842335
     1.7725000    0.0929994
     1.7825000    0.0938834
     1.7925001    0.1014052
     1.8025001    0.1107717
     1.8125001    0.1106072
     1.8225001    0.1032858
     1.8325001    0.0967231
     1.8425001    0.1072746
  </code></pre>
  
  <p>So, I call the command to show me all graphs on the GUI</p>
  
  <pre><code>xmgrace 1.xvg rmsd_amber_2.xvg rmsd_3.xvg
  </code></pre>
  
  <p>Is it possible to automatically use the filenames as the labels for the legend, using an option found within the GUI of xmgrace?  So far xmgrace automatically uses different line colors for each data series, but does not show the filename as the data label. </p>
  
  <p>If this is not possible, please suggest me another GUI software for Linux which is able to open xvg files from the terminal for its visualization "on the fly". </p>
  
  <p>Thanks !</p>