Other variables that you may want to set:
When this variable is set, all of Lire's messages at loglevel info or debug will be output on STDERR. (They might end up in your syslog though, if you use lr_run to redirect these messages.)
When this variable is set, the temporary DLF files created for extended and derived schema will be kept. This is only used to debug the extended or derived schema creators.
Set this to 1 if you want to keep intermediate files in TMPDIR, e.g. for debugging.
This sets the XSLT processor to use. Valid values are xsltproc or none. When none is used, a builtin convertor for XML is used to generate the ASCII reports. Other report format won't be available in this case. (xalan-c or sablotron are currently not supported.)
Sets the directory where log files which are getting processed and intermediate files are stored.
Defaults to $HOME/tmp.
Sets where log messages should be sent. Valid values are syslog or stderr.
When LR_LOGGING is set to syslog, this sets the syslog facility that will be used.
Tag that will be used for syslog logging. Defaults to lire.
There are other variables, e.g. to overwrite the location for XML related tools and files. You can find the names, along with descriptive comments, in the ${prefix}/etc/lire/defaults file.