conda create创建环境的时候  -y参数是能够直接跳过安装的确认过程

查看当前所有的虚拟环境

conda info -e

将目前conda环境的版本导出

conda env export > environment.yml

env是conda 环境操作的关键词，不是环境名

但是如果用上面命令导出的话，其yml文件是这样，第二个等号及后面代表了针对特定机器的信息，这样其他人用不同电脑用这个文件还原环境的时候可能就会报错

所以可以用这个命令去掉第二个等号及后缀

conda env export > environment.yml --no-builds

用导出的文件创建conda环境

conda env create -n simclr -f environment.yml

-f是--file的缩写

可以把envuironemnt.yml中的name和prefix删掉

导出的文件也可以是txt的 (出自FOTS 的pytorch 代码)

# This file may be used to create an environment using:
# $ conda create --name <env> --file <this file>
# platform: linux-64
@EXPLICIT
https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/blas-1.0-mkl.conda
https://repo.anaconda.com/pkgs/main/linux-64/ca-certificates-2021.1.19-h06a4308_1.conda
https://repo.anaconda.com/pkgs/main/linux-64/intel-openmp-2020.2-254.conda
https://repo.anaconda.com/pkgs/main/linux-64/ld_impl_linux-64-2.33.1-h53a641e_7.conda
https://repo.anaconda.com/pkgs/main/linux-64/libgfortran-ng-7.3.0-hdf63c60_0.conda
https://conda.anaconda.org/conda-forge/linux-64/libstdcxx-ng-9.3.0-h6de172a_18.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/mysql-common-8.0.23-ha770c72_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libgomp-9.3.0-h2828fa1_18.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/mkl-2020.2-256.conda
https://conda.anaconda.org/conda-forge/linux-64/_openmp_mutex-4.5-1_gnu.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libblas-3.8.0-21_mkl.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libcblas-3.8.0-21_mkl.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libgcc-ng-9.3.0-h2828fa1_18.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/liblapack-3.8.0-21_mkl.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/brotli-1.0.9-he6710b0_2.conda
https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-h7f98852_4.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.17.1-h7f98852_1.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/charls-2.1.0-he6710b0_2.conda
https://repo.anaconda.com/pkgs/main/linux-64/cudatoolkit-10.2.89-hfd86e86_1.conda
https://conda.anaconda.org/conda-forge/linux-64/expat-2.2.10-h9c3ff4c_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/geos-3.8.0-he6710b0_0.conda
https://conda.anaconda.org/conda-forge/linux-64/giflib-5.2.1-h516909a_2.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/gmp-6.2.1-h2531618_2.conda
https://repo.anaconda.com/pkgs/main/linux-64/graphite2-1.3.14-h23475e2_0.conda
https://conda.anaconda.org/conda-forge/linux-64/icu-68.1-h58526e2_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/jpeg-9d-h516909a_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/jxrlib-1.1-h7b6447c_2.conda
https://repo.anaconda.com/pkgs/main/linux-64/lame-3.100-h7b6447c_0.conda
https://conda.anaconda.org/conda-forge/linux-64/lerc-2.2.1-h9c3ff4c_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/libaec-1.0.4-he6710b0_1.conda
https://conda.anaconda.org/conda-forge/linux-64/libev-4.33-h516909a_1.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/libffi-3.3-he6710b0_2.conda
https://conda.anaconda.org/conda-forge/linux-64/libiconv-1.16-h516909a_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/liblapacke-3.8.0-21_mkl.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libuuid-2.32.1-h14c3975_1000.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/libuv-1.40.0-h7b6447c_0.conda
https://conda.anaconda.org/conda-forge/linux-64/libwebp-base-1.2.0-h7f98852_2.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/libxcb-1.14-h7b6447c_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/libzopfli-1.0.3-he6710b0_0.conda
https://conda.anaconda.org/conda-forge/linux-64/lz4-c-1.9.2-he1b5a44_3.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/lzo-2.10-h516909a_1000.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/ncurses-6.2-he6710b0_1.conda
https://conda.anaconda.org/conda-forge/linux-64/nspr-4.30-h9c3ff4c_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/openssl-1.1.1k-h7f98852_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/pcre-8.44-he1b5a44_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/pixman-0.40.0-h36c2ea0_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/reproc-14.2.1-h36c2ea0_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/snappy-1.1.8-he6710b0_0.conda
https://conda.anaconda.org/conda-forge/linux-64/xorg-kbproto-1.0.7-h14c3975_1002.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-libice-1.0.10-h516909a_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-renderproto-0.11.1-h14c3975_1002.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-xextproto-7.3.0-h14c3975_1002.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-xproto-7.0.31-h14c3975_1007.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/xz-5.2.5-h7b6447c_0.conda
https://conda.anaconda.org/conda-forge/linux-64/yaml-0.2.5-h516909a_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/zfp-0.5.5-he1b5a44_4.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/zlib-1.2.11-h7b6447c_3.conda
https://conda.anaconda.org/conda-forge/linux-64/brunsli-0.1-he1b5a44_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/gettext-0.19.8.1-h0b5b191_1005.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.10.6-nompi_h3c11f04_101.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/jasper-1.900.1-h07fcdf6_1006.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libedit-3.1.20191231-he28a2e2_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libevent-2.1.10-hcdb4288_3.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libllvm11-11.1.0-hf817b99_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libnghttp2-1.43.0-h812cca2_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/libpng-1.6.37-hbc83047_0.conda
https://conda.anaconda.org/conda-forge/linux-64/libprotobuf-3.15.6-h780b84a_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libsolv-0.7.17-h780b84a_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libssh2-1.9.0-ha56f1ee_6.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libxml2-2.9.10-h72842e0_3.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/nettle-3.4.1-hbb512f6_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/openh264-2.1.0-hd408876_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/readline-8.1-h27cfd23_0.conda
https://conda.anaconda.org/conda-forge/linux-64/reproc-cpp-14.2.1-h58526e2_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/tk-8.6.10-hbc83047_0.conda
https://conda.anaconda.org/conda-forge/linux-64/xorg-libsm-1.2.3-hd9c2040_1000.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-libx11-1.7.0-h36c2ea0_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/zstd-1.4.8-hdf46e1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/blosc-1.19.0-hd408876_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/freetype-2.10.4-h5ab3b9f_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/gnutls-3.6.5-h71b1129_1002.conda
https://conda.anaconda.org/conda-forge/linux-64/krb5-1.17.2-h926e7f8_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libarchive-3.5.1-h899b81a_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libclang-11.1.0-default_ha53f305_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libglib-2.68.0-h3e27bee_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libtiff-4.2.0-hdc55705_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libxkbcommon-1.0.3-he3ba5ed_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/mysql-libs-8.0.23-h935591d_1.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/sqlite-3.35.2-hdfb4753_0.conda
https://conda.anaconda.org/conda-forge/linux-64/xorg-libxext-1.3.4-h7f98852_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/xorg-libxrender-0.9.10-h7f98852_1003.tar.bz2
https://conda.anaconda.org/pytorch/linux-64/ffmpeg-4.3-hf484d3e_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/fontconfig-2.13.1-hba837de_1004.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/glib-tools-2.68.0-h9c3ff4c_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/gstreamer-1.18.4-h76c114f_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/lcms2-2.11-h396b838_0.conda
https://conda.anaconda.org/conda-forge/linux-64/libcurl-7.75.0-hc4aaa36_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libpq-13.1-hfd2b0eb_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/libwebp-1.2.0-h3452ae3_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/nss-3.63-hb5efdd6_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/openjpeg-2.3.1-hf7af979_3.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/python-3.7.10-hdb3f193_0.conda
https://repo.anaconda.com/pkgs/main/noarch/attrs-20.3.0-pyhd3eb1b0_0.conda
https://conda.anaconda.org/conda-forge/linux-64/cairo-1.16.0-h6cf1ce9_1008.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/click-7.1.2-pyh9f0ad1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/cloudpickle-1.6.0-py_0.conda
https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.4-pyh9f0ad1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/dask-core-2021.3.0-pyhd3eb1b0_0.conda
https://repo.anaconda.com/pkgs/main/noarch/decorator-4.4.2-pyhd3eb1b0_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/glib-2.68.0-h9c3ff4c_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/gst-plugins-base-1.18.4-h29181c9_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/idna-2.10-pyh9f0ad1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/iniconfig-1.1.1-pyhd3eb1b0_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/kiwisolver-1.3.1-py37h2531618_0.conda
https://repo.anaconda.com/pkgs/main/noarch/more-itertools-8.7.0-pyhd3eb1b0_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/ninja-1.10.2-py37hff7bd54_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/olefile-0.46-py37_0.conda
https://repo.anaconda.com/pkgs/main/noarch/py-1.10.0-pyhd3eb1b0_0.conda
https://conda.anaconda.org/conda-forge/noarch/pycparser-2.20-pyh9f0ad1d_2.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/pyparsing-2.4.7-pyhd3eb1b0_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/python_abi-3.7-1_cp37m.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/shellingham-1.4.0-pyh44b312d_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/six-1.15.0-pyh9f0ad1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/threadpoolctl-2.1.0-pyh5ca1d4c_0.conda
https://repo.anaconda.com/pkgs/main/noarch/toml-0.10.2-pyhd3eb1b0_0.conda
https://repo.anaconda.com/pkgs/main/noarch/toolz-0.11.1-pyhd3eb1b0_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/tornado-6.1-py37h27cfd23_0.conda
https://conda.anaconda.org/conda-forge/noarch/tqdm-4.59.0-pyhd8ed1ab_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/typing_extensions-3.7.4.3-pyha847dfd_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/werkzeug-1.0.1-pyh9f0ad1d_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/wheel-0.36.2-pyhd3eb1b0_0.conda
https://conda.anaconda.org/conda-forge/noarch/zipp-3.4.1-pyhd8ed1ab_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/absl-py-0.12.0-pyhd8ed1ab_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/certifi-2020.12.5-py37h89c1867_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/cffi-1.14.5-py37hc58025e_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/chardet-4.0.0-py37h89c1867_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/conda-package-handling-1.7.2-py37hb5d75c8_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/cycler-0.10.0-py37_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/cytoolz-0.11.0-py37h7b6447c_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/dbus-1.13.18-hb2f20db_0.conda
https://conda.anaconda.org/conda-forge/linux-64/harfbuzz-2.8.0-h83ec7ef_1.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/importlib-metadata-3.7.3-py37h89c1867_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/loguru-0.5.3-py37hc8dfbb8_2.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/mkl-service-2.3.0-py37he904b0f_0.conda
https://repo.anaconda.com/pkgs/main/noarch/packaging-20.9-pyhd3eb1b0_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/pillow-8.1.2-py37he98fc37_0.conda
https://conda.anaconda.org/conda-forge/linux-64/pycosat-0.6.3-py37h5e8e339_1006.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/pysocks-1.7.1-py37h89c1867_3.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/python-dateutil-2.8.1-pyhd3eb1b0_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/ruamel_yaml-0.15.80-py37h5e8e339_1004.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/typer-0.3.2-pyhd8ed1ab_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/brotlipy-0.7.0-py37h5e8e339_1001.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/cryptography-3.4.6-py37h5d9358c_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/importlib_metadata-3.7.3-hd3eb1b0_1.conda
https://conda.anaconda.org/conda-forge/noarch/markdown-3.3.4-pyhd8ed1ab_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/numpy-base-1.19.2-py37hfa32c7d_0.conda
https://conda.anaconda.org/conda-forge/linux-64/qt-5.12.9-hda022c4_4.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/setuptools-52.0.0-py37h06a4308_0.conda
https://conda.anaconda.org/conda-forge/linux-64/grpcio-1.36.1-py37hb27c1af_0.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/joblib-1.0.1-pyhd3eb1b0_0.conda
https://conda.anaconda.org/conda-forge/linux-64/libopencv-4.4.0-py37_2.tar.bz2
https://repo.anaconda.com/pkgs/main/noarch/networkx-2.5-py_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/pip-21.0.1-py37h06a4308_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/pluggy-0.13.1-py37_0.conda
https://conda.anaconda.org/conda-forge/linux-64/protobuf-3.15.6-py37hcd2ae1e_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/pyopenssl-20.0.1-pyhd8ed1ab_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/pytest-6.2.2-py37h06a4308_2.conda
https://conda.anaconda.org/conda-forge/noarch/urllib3-1.26.4-pyhd8ed1ab_0.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/requests-2.25.1-pyhd3deb0d_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/conda-4.9.2-py37h89c1867_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/mamba-0.8.2-py37h7f483ca_0.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/imagecodecs-2020.5.30-py37hda6ee5b_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/opencv-4.4.0-py37_2.tar.bz2
https://conda.anaconda.org/conda-forge/linux-64/py-opencv-4.4.0-py37h43977f1_2.tar.bz2
https://conda.anaconda.org/conda-forge/noarch/tensorboardx-2.1-py_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/matplotlib-base-3.3.4-py37h62a2d02_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/mkl_fft-1.3.0-py37h54f3939_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/mkl_random-1.1.1-py37h0573a6f_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/numpy-1.19.2-py37h54aff64_0.conda
https://repo.anaconda.com/pkgs/main/noarch/imageio-2.9.0-py_0.conda
https://conda.anaconda.org/pytorch/linux-64/pytorch-1.8.0-py3.7_cuda10.2_cudnn7.6.5_0.tar.bz2
https://repo.anaconda.com/pkgs/main/linux-64/pywavelets-1.1.1-py37h7b6447c_2.conda
https://repo.anaconda.com/pkgs/main/linux-64/scipy-1.6.1-py37h91f5cce_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/shapely-1.7.1-py37h98ec03d_0.conda
https://repo.anaconda.com/pkgs/main/noarch/tifffile-2021.3.17-pyhd3eb1b0_1.conda
https://repo.anaconda.com/pkgs/main/linux-64/scikit-image-0.17.2-py37hdf5156a_0.conda
https://repo.anaconda.com/pkgs/main/linux-64/scikit-learn-0.24.1-py37ha9443f7_0.conda
https://conda.anaconda.org/conda-forge/noarch/imgaug-0.4.0-py_1.tar.bz2

直接用别人的环境

把别人的envs下的那个环境文件夹拷过来放到自己的envs下，直接conda activate

但是有些setuptools安装的第三方库不能用，还得自己再装一下

重命名环境

没有重命名操作，重命名就是先复制一份再删掉旧环境

conda create -n tf --clone rcnnconda remove -n rcnn --all

但是这种操作有时候复制的环境和原环境有些包的版本还是不同，不知道为什么

最好用pip list > list.txt 然后diff比较一下

新版本已经有了conda rename命令了

conda rename -n test123 test321

删除环境

conda remove --name openmmlab --all

使用其他路径的conda环境 / 进入其它用户的anaconda环境

例如我在自己目录下装了anaconda，但是发现根目录下还有个anaconda，并且想使用它里面的环境，怎么办呢

source /anaconda/bin/activateconda activate azureml_py38

conda改变环境存储路径

当主目录空间有限，需要把envs存到数据盘的时候

conda config --append envs_dirs /mntnfs/med_data5/xxh/anaconda_envs_dirs

他这个路径的append是栈式的，就是新append的会在最上面，会最先选择

查看配置

conda config --show

改变pkgs目录存储路径

conda config --append pkgs_dirs /mntnfs/med_data5/xxh/anaconda_pkgs_dirs

.conda下的pkgs目录 & conda clean

在conda的设计中，目录'pkgs'是下载、存放缓存，以及提取下载的conda包的地方。同时，anaconda一起携带的包也会放在这里。

它有一个非常关键的作用：我们在构建一些envs的时候，对一些包的依赖会通过硬盘链接链接到pkgs目录，这样虚拟环境生成的速度大大加快，占用空间就大大减小了！！！

清理pkgs

当然是可以清理pkgs的。

第一种方式是直接删除pkgs，大大节省空间。但坏处就是当创建新环境时，现有包（在其他环境中）的共享文件将不再共享硬链接。

第二种官方推荐的方式更加安全：通过conda clean -h

删除未使用的的包

conda clean -p

删除全部的包

conda clean -a

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