Today in lab we checked blogs, we restarted servers if needed. 

To restart your server: 

a) go into silo

b) from the command line type: 

   ~/apache/bin/apachectl restart

Next we talked about crontab: 

crontab -l 

crontab -r 

crontab -e

http://kb.iu.edu/data/afiz.html

So let's setup a crontab entry so the server restarts every six hours:

crontab -e

Then add this:

49 6,12,18,0 * * * ~/apache/bin/apachectl restart

Next we start writing programs: 

a) log into silo

b) choose a folder to go into

c) create program with pico, make it executable, run it

We wrote this (in Python):

-bash-3.2$ cat eleven 
#!/usr/bin/python

print "Welcome to this program."

who = raw_input("Name: ")

age = raw_input("Age: ")

print "Well,", 
print who, 
print "you will be", 
print int(age) + 1, 
print "years old next year."

And this in Perl:

-bash-3.2$ cat twelve 
#!/usr/bin/perl

print "Welcome to this program.\n";

print "Name: "; 
$who = <STDIN>; 
chop($who); 

print "Age: "; 
$age = <STDIN>; 

print "Well, ";
print $who;
print " you will be ";
print $age + 1;
print " years old next year.";

-bash-3.2$

Now we want to write a web script that acts like these:

We chose Python: 

#!/usr/bin/python

import time

print "Content-type: text/html\n\n"

print "Howdy", time.localtime()

But here's the final version: 

#!/usr/bin/python

import cgi 

trumpet = cgi.FieldStorage()

if trumpet.has_key("who"): who = trumpet["who"].value
if trumpet.has_key("age"): age = trumpet["age"].value

print "Content-type: text/html\n\n"

print "Well,", who, "you will be", int(age) + 1, "years old next year"

This assumes we call it like this:

http://silo.cs.indiana.edu:8346/cgi-bin/flute?who=Michael&age=46