metres@metres /var/www/localhost/cgi-bin $ ls -al
total 16
drwxrwxr-x  2 apache apache 4096 nov  3 14:48 .
drwxr-xr-x 10 apache apache 4096 sep 22 15:06 ..
-rwxrwxr-x  1 apache apache   70 nov  3 14:40 bash.sh
-rwxrwxr-x  1 apache apache   57 nov  3 14:47 perl.pl
metres@metres /var/www/localhost/cgi-bin $ ./bash.sh
Content-type: text/html

haha
metres@metres /var/www/localhost/cgi-bin $ ./perl.pl
Content-type: text/html

haha
metres@metres /var/www/localhost/cgi-bin $ cat bash.sh
 #!/bin/sh
 #

 echo "Content-type: text/html"
 echo ""
 echo "haha"
metres@metres /var/www/localhost/cgi-bin $ cat perl.pl
#!/usr/bin/perl

print "Content-type: text/html

haha
";
metres@metres /var/www/localhost/cgi-bin $