| # How to Merge and Extract Split tar.xz Files | |
| Follow these steps to combine and extract your split alibaba_dataset files. | |
| ## Step 1: Download All Parts | |
| First, ensure all split parts are downloaded to the same directory: | |
| ``` | |
| alibaba_dataset_part_aa | |
| alibaba_dataset_part_ab | |
| alibaba_dataset_part_ac | |
| alibaba_dataset_part_ad | |
| alibaba_dataset_part_ae | |
| alibaba_dataset_part_af | |
| alibaba_dataset_part_ag | |
| ``` | |
| ## Step 2: Merge the Split Files | |
| Use the `cat` command to concatenate all parts in the correct order: | |
| ```bash | |
| cat alibaba_dataset_part_* > alibaba_dataset.tar.xz | |
| ``` | |
| This command combines all parts into a single file named `alibaba_dataset.tar.xz`. | |
| ## Step 3: Verify the Merged File | |
| Check that the merged file was created successfully: | |
| ```bash | |
| ls -lh alibaba_dataset.tar.xz | |
| ``` | |
| The file size should be approximately 500GB (the sum of all parts). | |
| ## Step 4: Extract the tar.xz Archive | |
| Use the `tar` command with appropriate flags: | |
| ```bash | |
| tar -xf alibaba_dataset.tar.xz | |
| ``` | |
| For progress visibility, add the verbose flag: | |
| ```bash | |
| tar -xvf alibaba_dataset.tar.xz | |
| ``` | |
| ## Step 5: Verify Extraction | |
| Once extraction is complete, check the extracted contents: | |
| ```bash | |
| ls -la | |
| ``` | |
| ## Memory-Efficient Options | |
| If disk space is limited, extract directly without saving the merged file: | |
| ```bash | |
| cat alibaba_dataset_part_* | tar -xJ | |
| ``` | |
| For large archives that cause memory issues: | |
| ```bash | |
| tar --use-compress-program="xz -d" -xf alibaba_dataset.tar.xz | |
| ``` | |
| This approach may handle very large archives more efficiently. |