With the new version of Checkbox, two files are written to $XDG_CACHE_HOME/checkbox - submission and system. These are plaintext files containing the respective IDs generated during the last run of checkbox. If they're not there, Checkbox has never been run.
Martin,
With the new version of Checkbox, two files are written to $XDG_CACHE_ HOME/checkbox - submission and system. These are plaintext files containing the respective IDs generated during the last run of checkbox. If they're not there, Checkbox has never been run.