I am stuggling with getting ConTeXt to run from inside a php script under Apache. First off, let me say that the installation works fine from the command line as a logged in user. Initially, I tried to do it inline: cmd = ". /opt/context/tex/setuptex /opt/context/tex/setuptex; cd $spool_dir; context $full_input_filename"; system($cmd); which returns exit status 2, "Incorrect usage". Then I created a small bash script with the following lines: #!/usr/bin/env bash . /opt/context/tex/setuptex /opt/context/tex context $1 When I trap the output, I get the following error in the log file: resolvers | caches | fatal error: there is no valid writable cache path defined I also attempted this manually at a bash prompt resulting in the same error: sudo -u www-data bash -c bin/proccontext.sh $FILENAME What would be the correct design pattern to invoke ConTeXt from a web application? This is all under Ubuntu 14.04, BTW. advTHANKSance -- Pavneet Arora m: +1 (647) 406-6843 Waroc Informatik t: +1 (416) 937-9276