index-merge - Merges multiple indexes into a single index.
lucene index merge <OUTPUT_DIRECTORY> <INPUT_DIRECTORY> <INPUT_DIRECTORY_2>[ <INPUT_DIRECTORY_N>...] [?|-h|--help]
Merges the the input index directories into a combined index at the output directory path.
OUTPUT_DIRECTORY
The output directory to merge the input indexes into.
INPUT_DIRECTORY, INPUT_DIRECTORY_2, INPUT_DIRECTORY_N
Two or more input index directories, separated by a space.
?|-h|--help
Prints out a short help for the command.
Merge the indexes C:\product-index1 and C:\product-index2 into an index located at X:\merged-index:
lucene index merge X:\merged-index C:\product-index1 C:\product-index2