下载软件:wget后面的地址就是上一步复制的下载链接

wget https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py38_4.8.3-Linux-x86_64.sh --no-check-certificate
[root@localhost lj]# wget https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py38_4.8.3-Linux-x86_64.sh --no-check-certificate
--2023-06-18 10:55:02--  https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py38_4.8.3-Linux-x86_64.sh
正在解析主机 mirrors.tuna.tsinghua.edu.cn (mirrors.tuna.tsinghua.edu.cn)... 101.6.15.130, 2402:f000:1:400::2
正在连接 mirrors.tuna.tsinghua.edu.cn (mirrors.tuna.tsinghua.edu.cn)|101.6.15.130|:443... 已连接。
已发出 HTTP 请求,正在等待回应... 200 OK
长度:93052469 (89M) [application/octet-stream]
正在保存至: “Miniconda3-py38_4.8.3-Linux-x86_64.sh”

100%[========================================================================================================================================================>] 93,052,469  23.1MB/s 用时 3.7s   

2023-06-18 10:55:05 (24.1 MB/s) - 已保存 “Miniconda3-py38_4.8.3-Linux-x86_64.sh” [93052469/93052469])

安装软件:安装过程中根据提示输入enter或yes

bash Miniconda3-py38_4.8.3-Linux-x86_64.sh
[root@localhost lj]# bash Miniconda3-py38_4.8.3-Linux-x86_64.sh

Welcome to Miniconda3 py38_4.8.3

In order to continue the installation process, please review the license
agreement.
Please, press ENTER to continue
>>> 
===================================
End User License Agreement - Anaconda Individual Edition
===================================

Copyright 2015-2020, Anaconda, Inc.

All rights reserved under the 3-clause BSD License:

This End User License Agreement (the "Agreement") is a legal agreement between you and Anaconda, Inc. ("Anaconda") and governs your use of Anaconda Individual Edition (which was formerly known a
s Anaconda Distribution).

......


Please answer 'yes' or 'no':'
>>> yes

Miniconda3 will now be installed into this location:
/root/miniconda3

  - Press ENTER to confirm the location
  - Press CTRL-C to abort the installation
  - Or specify a different location below
[/root/miniconda3] >>> 
PREFIX=/root/miniconda3
Unpacking payload ...
Collecting package metadata (current_repodata.json): done                                                                                                                                         
Solving environment: done

## Package Plan ##

  environment location: /root/miniconda3

  added / updated specs:
    - _libgcc_mutex==0.1=main
    - ca-certificates==2020.1.1=0
    - certifi==2020.4.5.1=py38_0
    - cffi==1.14.0=py38he30daa8_1
    - chardet==3.0.4=py38_1003
    - conda-package-handling==1.6.1=py38h7b6447c_0
    - conda==4.8.3=py38_0
    - cryptography==2.9.2=py38h1ba5d50_0
    - idna==2.9=py_1
    - ld_impl_linux-64==2.33.1=h53a641e_7
    - libedit==3.1.20181209=hc058e9b_0
    - libffi==3.3=he6710b0_1
    - libgcc-ng==9.1.0=hdf63c60_0
    - libstdcxx-ng==9.1.0=hdf63c60_0
    - ncurses==6.2=he6710b0_1
    - openssl==1.1.1g=h7b6447c_0
    - pip==20.0.2=py38_3
    - pycosat==0.6.3=py38h7b6447c_1
    - pycparser==2.20=py_0
    - pyopenssl==19.1.0=py38_0
    - pysocks==1.7.1=py38_0
    - python==3.8.3=hcff3b4d_0
    - readline==8.0=h7b6447c_0
    - requests==2.23.0=py38_0
    - ruamel_yaml==0.15.87=py38h7b6447c_0
    - setuptools==46.4.0=py38_0
    - six==1.14.0=py38_0
    - sqlite==3.31.1=h62c20be_1
    - tk==8.6.8=hbc83047_0
    - tqdm==4.46.0=py_0
    - urllib3==1.25.8=py38_0
    - wheel==0.34.2=py38_0
    - xz==5.2.5=h7b6447c_0
    - yaml==0.1.7=had09818_2
    - zlib==1.2.11=h7b6447c_3


The following NEW packages will be INSTALLED:

  _libgcc_mutex      pkgs/main/linux-64::_libgcc_mutex-0.1-main
  ca-certificates    pkgs/main/linux-64::ca-certificates-2020.1.1-0
  certifi            pkgs/main/linux-64::certifi-2020.4.5.1-py38_0
  cffi               pkgs/main/linux-64::cffi-1.14.0-py38he30daa8_1
  chardet            pkgs/main/linux-64::chardet-3.0.4-py38_1003
  conda              pkgs/main/linux-64::conda-4.8.3-py38_0
  conda-package-han~ pkgs/main/linux-64::conda-package-handling-1.6.1-py38h7b6447c_0
  cryptography       pkgs/main/linux-64::cryptography-2.9.2-py38h1ba5d50_0
  idna               pkgs/main/noarch::idna-2.9-py_1
  ld_impl_linux-64   pkgs/main/linux-64::ld_impl_linux-64-2.33.1-h53a641e_7
  libedit            pkgs/main/linux-64::libedit-3.1.20181209-hc058e9b_0
  libffi             pkgs/main/linux-64::libffi-3.3-he6710b0_1
  libgcc-ng          pkgs/main/linux-64::libgcc-ng-9.1.0-hdf63c60_0
  libstdcxx-ng       pkgs/main/linux-64::libstdcxx-ng-9.1.0-hdf63c60_0
  ncurses            pkgs/main/linux-64::ncurses-6.2-he6710b0_1
  openssl            pkgs/main/linux-64::openssl-1.1.1g-h7b6447c_0
  pip                pkgs/main/linux-64::pip-20.0.2-py38_3
  pycosat            pkgs/main/linux-64::pycosat-0.6.3-py38h7b6447c_1
  pycparser          pkgs/main/noarch::pycparser-2.20-py_0
  pyopenssl          pkgs/main/linux-64::pyopenssl-19.1.0-py38_0
  pysocks            pkgs/main/linux-64::pysocks-1.7.1-py38_0
  python             pkgs/main/linux-64::python-3.8.3-hcff3b4d_0
  readline           pkgs/main/linux-64::readline-8.0-h7b6447c_0
  requests           pkgs/main/linux-64::requests-2.23.0-py38_0
  ruamel_yaml        pkgs/main/linux-64::ruamel_yaml-0.15.87-py38h7b6447c_0
  setuptools         pkgs/main/linux-64::setuptools-46.4.0-py38_0
  six                pkgs/main/linux-64::six-1.14.0-py38_0
  sqlite             pkgs/main/linux-64::sqlite-3.31.1-h62c20be_1
  tk                 pkgs/main/linux-64::tk-8.6.8-hbc83047_0
  tqdm               pkgs/main/noarch::tqdm-4.46.0-py_0
  urllib3            pkgs/main/linux-64::urllib3-1.25.8-py38_0
  wheel              pkgs/main/linux-64::wheel-0.34.2-py38_0
  xz                 pkgs/main/linux-64::xz-5.2.5-h7b6447c_0
  yaml               pkgs/main/linux-64::yaml-0.1.7-had09818_2
  zlib               pkgs/main/linux-64::zlib-1.2.11-h7b6447c_3


Preparing transaction: done
Executing transaction: done
installation finished.
Do you wish the installer to initialize Miniconda3
by running conda init? [yes|no]
[no] >>> yes
no change     /root/miniconda3/condabin/conda
no change     /root/miniconda3/bin/conda
no change     /root/miniconda3/bin/conda-env
no change     /root/miniconda3/bin/activate
no change     /root/miniconda3/bin/deactivate
no change     /root/miniconda3/etc/profile.d/conda.sh
no change     /root/miniconda3/etc/fish/conf.d/conda.fish
no change     /root/miniconda3/shell/condabin/Conda.psm1
no change     /root/miniconda3/shell/condabin/conda-hook.ps1
no change     /root/miniconda3/lib/python3.8/site-packages/xontrib/conda.xsh
no change     /root/miniconda3/etc/profile.d/conda.csh
modified      /root/.bashrc

==> For changes to take effect, close and re-open your current shell. <==

If you'd prefer that conda's base environment not be activated on startup, 
   set the auto_activate_base parameter to false: 

conda config --set auto_activate_base false

Thank you for installing Miniconda3!

重启终端查看版本号

conda -V
(base) [lj@localhost ~]$ conda -V
conda 4.8.3

更换清华源:在用户目录(/home/xxx)下新建.condarc文件

touch .condarc

用vim打开.condarc文件,写入下方内容保存后退出

vim .condarc
channels:
  - defaults
show_channel_urls: true
channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
custom_channels:
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

执行以下命令清除索引缓存,保证用的是镜像站提供的索引

conda clean -i

配置完毕,执行以下命令查看是否已经换源

conda config --show

可以看到已经更换为清华源了

(base) [lj@localhost ~]$ conda config --show
add_anaconda_token: True
add_pip_as_python_dependency: True
aggressive_update_packages:
  - ca-certificates
  - certifi
  - openssl
allow_conda_downgrades: False
allow_cycles: True
allow_non_channel_urls: False
allow_softlinks: False
always_copy: False
always_softlink: False
always_yes: None
anaconda_upload: None
auto_activate_base: True
auto_stack: 0
auto_update_conda: True
bld_path: 
changeps1: True
channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda
channel_priority: flexible
channels:
  - defaults
client_ssl_cert: None
client_ssl_cert_key: None
clobber: False
conda_build: {}
create_default_packages: []
croot: /home/lj/miniconda3/conda-bld
custom_channels:
  pkgs/main: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  pkgs/free: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  pkgs/r: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  pkgs/pro: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  pkgs/msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
custom_multichannels:
  defaults: 
    - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
    - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
    - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
    - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
    - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
  local: 
debug: False
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
default_python: 3.8
default_threads: None
deps_modifier: not_set
dev: False
disallowed_packages: []
download_only: False
dry_run: False
enable_private_envs: False
env_prompt: ({default_env}) 
envs_dirs:
  - /home/lj/miniconda3/envs
  - /home/lj/.conda/envs
error_upload_url: https://conda.io/conda-post/unexpected-error
execute_threads: 1
extra_safety_checks: False
force: False
force_32bit: False
force_reinstall: False
force_remove: False
ignore_pinned: False
json: False
local_repodata_ttl: 1
migrated_channel_aliases: []
migrated_custom_channels: {}
non_admin_enabled: True
notify_outdated_conda: True
offline: False
override_channels_enabled: True
path_conflict: clobber
pinned_packages: []
pip_interop_enabled: False
pkgs_dirs:
  - /home/lj/miniconda3/pkgs
  - /home/lj/.conda/pkgs
proxy_servers: {}
quiet: False
remote_backoff_factor: 1
remote_connect_timeout_secs: 9.15
remote_max_retries: 3
remote_read_timeout_secs: 60.0
repodata_fns:
  - current_repodata.json
  - repodata.json
repodata_threads: None
report_errors: None
restore_free_channel: False
rollback_enabled: True
root_prefix: /home/lj/miniconda3
safety_checks: warn
sat_solver: pycosat
separate_format_cache: False
shortcuts: True
show_channel_urls: True
solver_ignore_timestamps: False
ssl_verify: True
subdir: linux-64
subdirs:
  - linux-64
  - noarch
target_prefix_override: 
track_features: []
unsatisfiable_hints: True
unsatisfiable_hints_check_depth: 2
update_modifier: update_specs
use_index_cache: False
use_local: False
use_only_tar_bz2: False
verbosity: 0
verify_threads: 1
whitelist_channels: []