peterw@PGW-IHTSDO-3:~/code/delta-generator-tool/target$ java -jar DeltaGeneratorTool 20200731 ~/Backup/xSnomedCT_InternationalRF2_BETA_20210731T120000Z.zip
Error: Unable to access jarfile DeltaGeneratorTool
peterw@PGW-IHTSDO-3: ~/code/delta-generator-tool/target$ java -jar DeltaGeneratorTool.jar ~/Backup/SnomedCT_InternationalRF2_20220731T120000Z.zip ~/Backup/xSnomedCT_InternationalRF2_BETA_20230131T120000Z.zip
SNOMED International RF2 Delta Generator Tool
=============================================
Exception in thread "main" java.io.IOException: '/home/peterw/Backup/xSnomedCT_InternationalRF2_BETA_20230131T120000Z.zip' could not be read as an archive file.
at org.snomed.otf.delta.DeltaGeneratorTool.validateFile(DeltaGeneratorTool.java:119)
at org.snomed.otf.delta.DeltaGeneratorTool.main(DeltaGeneratorTool.java:43)