.TH XY-PLOT 1 2017-01-24 NCBI "NCBI Entrez Direct User's Manual" .SH NAME xy\-plot \- produce and display a line graph .SH SYNOPSIS \fBxy\-plot\fP [\|\fIfilename\fP\|] .SH DESCRIPTION xy\-plot reads from standard input a two\-column text file whose columns contain \fIx\fP and \fIy\fP coordinates respectively, generates a corresponding PNG image, and (if possible) displays the image to the user. .SH OPTIONS .TP \fIfilename\fP Output filename (\fBedirect.png\fP by default). Explicitly specifying the \fB.png\fP extension may be helpful. .SH SEE ALSO .BR xdg-open (1).