ENV{"varname"} -- inspect the value of an environment variable

  • Returns the current value of the environment variable in the CGI (Common Gateway Interface) environment. This is the environment that the TWiki scripts run in on the web server.
  • Note: For security reasons, only those variables whose names match the regular expression in {AccessibleENV} in the Security Settings/Miscellaneous section of configure can be displayed. Any other variable will just be shown as an empty string, irrespective of its real value.
  • Example: %ENV{MOD_PERL}% displays as: not set
  • If a variable is undefined (as against being set to the empty string) it will be returned as not set.
  • Category: SystemInformationVariables
  • Related: HTTP_HOST, REMOTE_ADDR, REMOTE_PORT, REMOTE_USER
r2 - 12 Nov 2012 - 08:22:16 - TWikiContributor
 
Linux & Open Source related information for AT91 Smart ARM Microcontrollers

Copyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.

Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.

Atmel® and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. This site is powered by the TWiki collaboration platform

ARM® and others are registered trademarks or trademarks of ARM Ltd. Other terms and product names may be trademarks of others.

Ideas, requests, contributions ? Connect to LinksToCommunities page.

Syndicate this siteRSS ATOM