(sc) root 08:48:43 ~/project
$ python
Python 3.9.5 (default, May 18 2021, 19:34:48) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import scanpy as sc
>>> import numpy as np
>>> import pandas as pd
>>> 
(sc) root 08:55:59 ~/project
$ mkdir data
mkdir: cannot create directory 'data': File exists
(sc) root 08:56:03 ~/project
$ wget http://cf.10xgenomics.com/samples/cell-exp/1.1.0/pbmc3k/pbmc3k_filtered_gene_bc_matrices.tar.gz -O data/pbmc3k_filtered_gene_bc_matrices.tar.gz
--2021-06-03 08:56:24--  http://cf.10xgenomics.com/samples/cell-exp/1.1.0/pbmc3k/pbmc3k_filtered_gene_bc_matrices.tar.gz
Resolving cf.10xgenomics.com (cf.10xgenomics.com)... 104.18.0.173, 104.18.1.173, 2606:4700::6812:1ad, ...
Connecting to cf.10xgenomics.com (cf.10xgenomics.com)|104.18.0.173|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://cf.10xgenomics.com/samples/cell-exp/1.1.0/pbmc3k/pbmc3k_filtered_gene_bc_matrices.tar.gz [following]
--2021-06-03 08:56:24--  https://cf.10xgenomics.com/samples/cell-exp/1.1.0/pbmc3k/pbmc3k_filtered_gene_bc_matrices.tar.gz
Connecting to cf.10xgenomics.com (cf.10xgenomics.com)|104.18.0.173|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 7621991 (7.3M) [application/x-tar]
Saving to: 'data/pbmc3k_filtered_gene_bc_matrices.tar.gz'

data/pbmc3k_filtered 100%[=====================>]   7.27M  24.4MB/s    in 0.3s    

2021-06-03 08:56:24 (24.4 MB/s) - 'data/pbmc3k_filtered_gene_bc_matrices.tar.gz' saved [7621991/7621991]

(sc) root 08:56:25 ~/project
$ cd data; tar -xzf pbmc3k_filtered_gene_bc_matrices.tar.gz
(sc) root 08:56:40 ~/project/data
$ cd data                                                  
-bash: cd: data: No such file or directory
(sc) root 08:57:50 ~/project/data
$ ls
filtered_gene_bc_matrices  pbmc3k_filtered_gene_bc_matrices.tar.gz
(sc) root 08:58:00 ~/project/data
$ mkdir write
(sc) root 08:58:24 ~/project/data
$ python
Python 3.9.5 (default, May 18 2021, 19:34:48) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy as np
>>> import pandas as pd
>>> import scanpy as sc
>>> sc.settings.verbosity = 3             # verbosity: errors (0), warnings (1), info (2), hints (3)
>>> sc.logging.print_header()
scanpy==1.7.2 anndata==0.7.6 umap==0.5.1 numpy==1.20.3 scipy==1.6.3 pandas==1.2.4 scikit-learn==0.24.2 statsmodels==0.12.2
>>> sc.settings.set_figure_params(dpi=80, facecolor='white')
>>>