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The /var/tmp directory is made available for programs that require temporary files or directories that are preserved between system reboots. Therefore, data stored in /var/tmp is more persistent than data in /tmp.
Files and directories located in /var/tmp must not be deleted when the system is booted. Although data stored in /var/tmp is typically deleted in a site-specific manner, it is recommended that deletions occur at a less frequent interval than /tmp.
Dbvisit Replicate uses perl PAR-Packer to extract libraries to correct location so if you prefer /var/tmp rather than /tmp, you can change it as follows:
$ export PAR_GLOBAL_TEMP=/var/tmp
Ammend user profile to keep this configuration permanent.