File size: 1,520 Bytes
14c6788 |
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# 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. |