Test SSI exec

The following is the output of  /usr/bin/cal. Can only run  commands in /usr/bin and your CGI directories.
GEOIP_COUNTRY_CODE=US
GEOIP_COUNTRY_NAME=United States
SCRIPT_URL=/dev/doc/Try_Me/test_exec.html
SCRIPT_URI=http://www.ma.utexas.edu/dev/doc/Try_Me/test_exec.html
HTTP_HOST=www.ma.utexas.edu
HTTP_USER_AGENT=CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
HTTP_ACCEPT=Accept: application/xhtml+xml,text/html;q=0.9,text/plain;
HTTP_ACCEPT_LANGUAGE=en-us,en;q=0.5
HTTP_ACCEPT_ENCODING=gzip
HTTP_ACCEPT_CHARSET=ISO-8859-1,utf-8;q=0.7,*;q=0.7
HTTP_CONNECTION=close
HTTP_CACHE_CONTROL=no-cache
HTTP_PRAGMA=no-cache
PATH=/bin:/usr/bin
SERVER_SIGNATURE=
Apache/2.0.55 (Debian) DAV/2 SVN/1.1.4 mod_fastcgi/2.4.2 mod_jk/1.2.18 mod_ldap_userdir/1.1.8 mod_python/3.1.3 Python/2.3.5 PHP/5.1.6-1 mod_ruby/1.2.6 Ruby/1.8.5(2006-08-25) mod_ssl/2.0.55 OpenSSL/0.9.8c mod_perl/2.0.2 Perl/v5.8.8 Server at www.ma.utexas.edu Port 80
SERVER_SOFTWARE=Apache/2.0.55 (Debian) DAV/2 SVN/1.1.4 mod_fastcgi/2.4.2 mod_jk/1.2.18 mod_ldap_userdir/1.1.8 mod_python/3.1.3 Python/2.3.5 PHP/5.1.6-1 mod_ruby/1.2.6 Ruby/1.8.5(2006-08-25) mod_ssl/2.0.55 OpenSSL/0.9.8c mod_perl/2.0.2 Perl/v5.8.8 SERVER_NAME=www.ma.utexas.edu SERVER_ADDR=146.6.139.68 SERVER_PORT=80 REMOTE_ADDR=38.103.63.61 DOCUMENT_ROOT=/d/www SERVER_ADMIN=webmaster@math.utexas.edu SCRIPT_FILENAME=/d/www/cgi-bin/cms/pub/body REMOTE_PORT=55000 GATEWAY_INTERFACE=CGI/1.1 SERVER_PROTOCOL=INCLUDED REQUEST_METHOD=GET QUERY_STRING= REQUEST_URI=/dev/doc/Try_Me/test_exec.html SCRIPT_NAME=/cgi-bin/cms/pub/body DATE_LOCAL= DATE_GMT= LAST_MODIFIED= DOCUMENT_URI=/dev/doc/Try_Me/test_exec.html USER_NAME= DOCUMENT_NAME=test_exec.html