All commands in this section use the Linux operating system as an example to describe how to perform synchronous download operations.

Assume that bucket bucket-test contains the following objects:

obs://bucket-test/src1/
obs://bucket-test/src1/test3.txt
obs://bucket-test/src1/src2/
obs://bucket-test/src1/src2/test1.txt
obs://bucket-test/src1/src2/test2.txt
obs://bucket-test/src1/src3/

Assume that a local folder is in the following structure:

└── src1
    └── test3.txt

Based on the structure of the preceding local folder and objects in the bucket, different synchronous download scenarios require different commands.

To synchronize all files and subfolders in the src1 folder in bucket bucket-test to the local src1 folder, the command is as follows:
```
./obsutil sync obs://bucket-test/src1  /src1
```
After the synchronization is successful, the following files are generated in the local src1 folder:
```
└── src1
    ├── src2
        ├── test1.txt
        └── test2.txt
    ├── src3
    └── test3.txt
```

Synchronous Download