#!/usr/bin/perl
# Do NOT edit this file on Windows

# For a cgi file to work correctly,

#  - it has to be placed below ~/public_html folder

#  - If any cgi file or directories below public_html has
#      write permission for either group or others,
#    cgi files will NOT be executed by web server as a security precaution
#    Make sure to set permissions for
#      ~  as 701 (rwx-----x)
#      ~/public_html as 701 (rwx-----x)
#      htm file that calls the cgi file, as 644 (rw-r--r--)
#      each cgi file as 700 (rwx------)

#  - If the cgi file is edited on Windows
#    OR when the file is edited on Linux 
#        and if status line (at the bottom of the screen) contains "[dos]",
#     the cgi file may contain hidden CR (carriage return)
#       that would prevent the execution of the cgi file.
#    To fix this problem,
#      Download stripCRoneFile.pl (in binary mode) to a Linux system
#        and set the file permission as 700.
#      Execute it as  ./stripCRoneFile.pl
#        type the cgi filename
#      This script will remove end-of-line CR from all lines
#        and saves them on the same cgi file.

#  - If a cgi file causes error, comment out suspected lines
#      by placing '#' at the first column and isolate the error

#  - When a cgi file prepares html lines for output,
#      the first html output line must be a html message header
#      (Content-type) as shown below:
#
# --Prabu

print "Content-type: text/html\n\n";
print "";
print "Hello! world\n";