Вот тест-скрипт на Bash

#!/bin/sh
 
# disable filename globbing
set -f
 
echo Content-type: text/plain
echo
 
echo CGI/1.0 test script report:
echo
 
echo argc is $#. argv is "$*".
echo
 
echo SERVER_SOFTWARE = $SERVER_SOFTWARE
echo SERVER_NAME = $SERVER_NAME
echo GATEWAY_INTERFACE = $GATEWAY_INTERFACE
echo SERVER_PROTOCOL = $SERVER_PROTOCOL
echo SERVER_PORT = $SERVER_PORT
echo REQUEST_METHOD = $REQUEST_METHOD
echo HTTP_ACCEPT = "$HTTP_ACCEPT"
echo PATH_INFO = "$PATH_INFO"
echo PATH_TRANSLATED = "$PATH_TRANSLATED"
echo SCRIPT_NAME = "$SCRIPT_NAME"
echo QUERY_STRING = "$QUERY_STRING"
echo REMOTE_HOST = $REMOTE_HOST
echo REMOTE_ADDR = $REMOTE_ADDR
echo REMOTE_USER = $REMOTE_USER
echo AUTH_TYPE = $AUTH_TYPE
echo CONTENT_TYPE = $CONTENT_TYPE
echo CONTENT_LENGTH = $CONTENT_LENGTH
echo HTTP_REFERER = "$HTTP_REFERER"
echo HTTP_REFERER = $HTTP_REFERER
echo HTTP_USER_AGENT = $HTTP_USER_AGENT
echo CHARSET = $CHARSET
echo SOURCE_CHARSET = $SOURCE_CHARSET