1. Building Your Web Site ATS 315

2. Your Project Make a web site that shows plots that YOU generated! Plots should regenerate every hour!

3. Step 1:Decide what plots you want to show Pick out a couple of charts that can be made with the programs we have written this semester. Don’t go nuts—maybe 4 or 5 plots at most!

4. Step 2: Make special versions of your programs with NO interaction! Your programs shouldn’t require anyone to choose a variable, domain, contour interval or anything like that. Each program should produce ONE chart!

5. Step 3: Modify these programs so that they produce an XWD file XWD = “XWindow Dump”  a file format for images, similar to GIF We’ll learn how to do this later.

6. Step 4: Create a “script” that runs these programs. “scripts” – little programs that perform unix commands. We’ll learn more about this later.

7. Step 5: Set up a “crontab” that runs your script each hour crontabs are scripts that execute on a schedule. We’ll learn more about this later.

8. Step 6: Make an HTML page to display your output You already know how to do this!

9. The Steps: 1.Decide what you’ll show 2.Versions w/o interaction 3.Produce XWD files 4.Set up scripts 5.Set up crontabs 6.Write HTML code

10. Step 3:Produce XWD files of your maps /export/home/schragej/X/xwdjms a special version of a standard unix program “xwd” captures a graphics window and saves it as a.xwd file no beeping! xwdjms –name myplot

11. Step 3:Produce XWD files of your maps /export/home/schragej/X/xwdjms a special version of a standard unix program “xwd” captures a graphics window and saves it as a.xwd file no beeping! xwdjms –name myplot The name of the graphics window that you opened! Don’t use any spaces!

12. Step 3:Produce XWD files of your maps xwdjms uses “printf” to dump everything it does to the screen. You need to “capture” this to a file! xwdjms –name myplot > image.xwd

13. Step 3:Produce XWD files of your maps xwdjms is a UNIX command, not a C command! system(“ ”);

14. Step 3:Produce XWD files of your maps xwdjms is a UNIX command, not a C command! system(“ ”); Example: system(“rm *.dat”);

15. Step 3:Produce XWD files of your maps system(“/export/home/schragej/X/xwdjms –name myplot > image.xwd”);

16. Step 3:Produce XWD files of your maps system(“/export/home/schragej/X/xwdjms –name myplot > image.xwd”); Also, turn off the ghold!!!!!!!!

17. Step 3:Produce XWD files of your maps system(“/export/home/schragej/X/xwdjms –name myplot > image.xwd”); Also, turn off the ghold!!!!!!!! Still more problems…

18. Step 3:Produce XWD files of your maps Draw the map Draw the data system(“xwdjms…”); Even though you’ve given the orders to draw all the lines and all the data, the graphics might not “keep up”…

19. Step 3:Produce XWD files of your maps Draw the map Draw the data system(“xwdjms…”); …when you call xwdjms, it’s possible/likely that the picture isn’t done yet! You’ll capture a partial image!

20. Step 3:Produce XWD files of your maps Draw the map Draw the data XFlush(display); system(“xwdjms…”); You need to XFlush the display.

21. Step 3:Produce XWD files of your maps Draw the map Draw the data XFlush(display); system(“xwdjms…”); You need to XFlush the display.

22. Step 3:Produce XWD files of your maps Draw the map Draw the data XFlush(display); system(“xwdjms…”); Display *display; display = gget_xdisplay();

23. Step 3:Produce XWD files of your maps Display *display; display = gget_xdisplay(); Draw the map Draw the data XFlush(display); system(“xwdjms…”);

24. The Steps: 1.Decide what you’ll show 2.Versions w/o interaction 3.Produce XWD files 4.Set up scripts 5.Set up crontabs 6.Write HTML code

25. Step 4: Create a “script” that runs these programs. “scripts” – little programs that perform unix commands. An example of a script:

26. Step 4: Create a “script” that runs these programs. An example of a script: #! /bin/csh –f rm *.gif mv sample.data my.data

27. Step 4: Create a “script” that runs these programs. All scripts start with “pound bang space slash bin slash sea ess aich space minus eff” #! /bin/csh –f rm *.gif mv sample.data my.data

28. Step 4: Create a “script” that runs these programs. Everything after that just runs as if you typed it at the keyboard in Unix. #! /bin/csh –f rm *.gif mv sample.data my.data

29. Step 4: Create a “script” that runs these programs. Everything after that just runs as if you typed it at the keyboard in Unix. #! /bin/csh –f setenv DISPLAY wx-sun1:0. rm *.xwd MakeTempContours /opt/sfw/bin/convert image.xwd temperature.gif mv temperature.gif public_html

30. Step 4: Create a “script” that runs these programs. Change the execution privileges on your script: chmod a+x MyScript Test it.

31. The Steps: 1.Decide what you’ll show 2.Versions w/o interaction 3.Produce XWD files 4.Set up scripts 5.Set up crontabs 6.Write HTML code

32. Step 5: Set up a “crontab” that runs your script each hour crontabs are scripts that execute on a schedule. To edit a crontab, you need to have set the EDITOR variable to your favorite editor: setenv EDITOR vi setenv EDITOR pico

33. Step 5: Set up a “crontab” that runs your script each hour start editing: crontab –e Every line of the crontab schedules one task to be run repeatedly. There are 6 entries on every line:

34. Step 5: Set up a “crontab” that runs your script each hour The first entry is the MINUTE of each hour during which to run your job. 15 * * * * /export/home/schragej/MyScript Adams 1 Affelt Augustyn 2 Campbell 3 Craft 4 Dea 5 Fontaine 6 Franks 7 Hollibaugh 8 Hyda 9 Karr 10 Malone 11 Novella 12 Robinson 13 Selin 14 Smoliak 15 Taylor 16 Wilson 17

35. Step 5: Set up a “crontab” that runs your script each hour Entries 2, 3, 4, and 5 are the hour, day, day of week and day of month on which to run the job. A star means “every”. 15 * * * * /export/home/schragej/MyScript

36. Step 5: Set up a “crontab” that runs your script each hour The sixth entry is the name of your script, with the full path name! If your script prints ANYTHING to the screen, you’ll need to include: > /dev/null or the output will be emailed to you! 15 * * * * /export/home/schragej/MyScript

37. The Steps: 1.Decide what you’ll show 2.Versions w/o interaction 3.Produce XWD files 4.Set up scripts 5.Set up crontabs 6.Write HTML code

38. Your (Last!) Assignment Impress me with a web site with weather charts that refresh hourly!