Use of Claude Code

Posted on 2026-06-26 In tech Views:

How to install and use calude code.

1. Installation

1.1 Install Node JS

After downloading the package, the process will install Node JS and npm automatically.

Note: I install the Node JS:

Check:

test@▒ѩ▒ MINGW64 ~
$ node -v
v24.13.0

test@ѩ▒ MINGW64 ~
$ npm -v
11.6.2

Then, configurate the PATH:

Make two new folders node_cache and node_global inside the Node JS folder:

1	D:\softwares\nodejs

Add administrator permissions to folders:

1 2	npm config set prefix "D:\softwares\nodejs\node_global" npm config set cache "D:\softwares\nodejs\node_cache"

Use npm config get prefix and npm config get cachecommands to check:

test@ѩ▒ MINGW64 ~
$ cd /d/softwares/nodejs

test@ѩ▒ MINGW64 /d/softwares/nodejs
$ npm config get prefix
D:\softwares\nodejs\node_global

test@▒ѩ▒ MINGW64 /d/softwares/nodejs
$ npm config get cache
D:\softwares\nodejs\node_cache

Then add new System Variables:

System Variables -> New :

Variable Name: NODE_PATH

Variable Value: D:\softwares\nodejs\node_global\node_modules

Note: Here a sub direction node_modules is added
User Variables -> Path -> Edit -> New:

Add: D:\softwares\nodejs\node_global
System Variables -> Edit -> New :

Add: %NODE_PATH%

Check:

test@▒ѩ▒ MINGW64 ~
$ npm install express -g

changed 65 packages in 2s

22 packages are looking for funding
  run `npm fund` for details

1.2 Install Git

Skip

1.3 Install cc-switch

This software is used to link the LLM to the Claude Code.

Repo Link

Download the package: CC-Switch-v3.16.1-Windows.msi

Install the cc-switch.

1.4 Install Claude Code

Use the command npm install -g @anthropic-ai/claude-code to install Claude Code

Note: This step requires administrator privileges for the terminal. Please make sure Git Bash is running as Administrator before proceeding.

test@▒ѩ▒ MINGW64 ~
$ npm install -g @anthropic-ai/claude-code

added 2 packages in 7s
npm notice
npm notice New minor version of npm available! 11.6.2 -> 11.16.0
npm notice Changelog: https://github.com/npm/cli/releases/tag/v11.16.0
npm notice To update run: npm install -g npm@11.16.0
npm notice

Check:

1
2
3

test@▒ѩ▒ MINGW64 ~
$ claude -v
2.1.162 (Claude Code)

Then we can run the Claude Code:

test@ѩ▒ MINGW64 ~
$ claude
Welcome to Claude Code v2.1.162
..........................................................

     *                                       █████▓▓░
                                 *         ███▓░     ░░
            ░░░░░░                        ███▓░
    ░░░   ░░░░░░░░░░                      ███▓░
   ░░░░░░░░░░░░░░░░░░░    *                ██▓░░      ▓
                                             ░▓▓███▓▓░
 *                                 ░░░░
                                 ░░░░░░░░
                               ░░░░░░░░░░░░░░░░
       █████████                                        *
      ██▄█████▄██                        *
       █████████      *
.......█ █   █ █..........................................

 Unable to connect to Anthropic services

 Failed to connect to api.anthropic.com: ERR_BAD_REQUEST

 Please check your internet connection and network settings.

 Note: Claude Code might not be available in your country. Check supported countries at
 https://anthropic.com/supported-countries

1.5 Configure the Claude Code

Open the Claude configuration file:

C:\Users\test\.claude.json

The default configuration is as follows:

{
  "firstStartTime": "2026-06-04T12:20:36.283Z",
  "opusProMigrationComplete": true,
  "sonnet1m45MigrationComplete": true,
  "seenNotifications": {},
  "migrationVersion": 13,
  "userID": "a91eb6de49737dbc1dd760e7e9fd2534ce3be93bbc936a1bd3a70b72caec7b59"
}

add new item:

1	"hasCompletedOnboarding": true

Note: a , is needed at the end of previous last item.

{
  "firstStartTime": "2026-06-04T12:20:36.283Z",
  "opusProMigrationComplete": true,
  "sonnet1m45MigrationComplete": true,
  "seenNotifications": {},
  "migrationVersion": 13,
  "userID": "a91eb6de49737dbc1dd760e7e9fd2534ce3be93bbc936a1bd3a70b72caec7b59",
  "hasCompletedOnboarding": true
}

Check:

Restart the Claude:

test@▒ѩ▒ MINGW64 ~
$ claude

─────────────────────────────────────────────────────────────────────────────────────────────
 Accessing workspace:

 C:\Users\test

 Quick safety check: Is this a project you created or one you trust? (Like your own code, a
 well-known open source project, or work from your team). If not, take a moment to review
 what's in this folder first.

 Claude Code'll be able to read, edit, and execute files here.

 Security guide

 > 1. Yes, I trust this folder
   2. No, exit

 Enter to confirm · Esc to cancel

1.6 Integrate A LLM into Claude Code(DeepSeek)

Create a API Key.
Open cc-switch, add a new LLM provider.

Choose the API provider: Deep Seek.

Fulfill the API, check the 1M option.

Save.

Use /modelCheck:

test@ѩ▒ MINGW64 /d
$ claude
╭─── Claude Code v2.1.162 ──────────────────────────────────────────────────────────────────╮│                                         │ Tips for getting started                        ││              Welcome back!              │ Run /init to create a CLAUDE.md file with inst… ││                                         │ ─────────────────────────────────────────────── ││                 ▐▛███▜▌                 │ What's new                                      ││                ▝▜█████▛▘                │ `claude agents --json` now includes `waitingFo… ││                  ▘▘ ▝▝                  │ `--tools`: explicitly listing Grep/Glob now pr… ││                                         │ `/effort` now confirms when your chosen level … ││   deepseek-v4-pro · API Usage Billing   │ /release-notes for more                         ││                   D:\                   │                                                 │╰───────────────────────────────────────────────────────────────────────────────────────────╯

 ▎ Opus 4.8 is now available! · /model to switch                                             
> /model

─────────────────────────────────────────────────────────────────────────────────────────────  Select model
  Switch between Claude models. Your pick becomes the default for new sessions. For
  other/previous model names, specify with --model.

    1. Default (recommended)  Use the default model (currently deepseek-v4-pro[1M][1m]) ·
                              $5/$25 per Mtok
    2. deepseek-v4-pro        Custom Opus model (1M context)
    3. deepseek-v4-pro        Custom Sonnet model (1M context)
    4. deepseek-v4-flash      Custom Haiku model
  > 5. deepseek-v4-pro √      Custom model

  ● High effort (default) ←/→ to adjust

  Enter to set as default · s to use this session only · Esc to cancel

Check:

 ▎ Opus 4.8 is now available! · /model to switch

> /model
  ⎿  Set model to deepseek-v4-pro and saved as your default for new sessions

> hello, it's a test message

  Thought for 3s (ctrl+o to expand)

● Hello! I received your test message. Everything is working. How can I help you today?

✻ Worked for 3s

> what the model are u?                                                                      
  Thought for 1s (ctrl+o to expand)

● I'm currently running on DeepSeek-v4-pro, as configured by your /model setting. This is the
  model you've set as your default for new sessions.

  Is there anything I can help you with?

✻ Worked for 2s