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August 27, 2025 04:36
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清理 nvm 已安装 Node.js 版本，只保留每个 major 版本的最新版本（macOS bash）
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| #!/bin/bash | |
| # nvm-clean-major: 清理 nvm 已安装 Node.js 版本，只保留每个 major 版本的最新版本 | |
| # 仅在 macOS + bash 环境下测试通过 | |
| RED="\033[31;1m" | |
| GREEN="\033[32;1m" | |
| YELLOW="\033[33;1m" | |
| RESET="\033[0m" | |
| function clean_nvm_versions() { | |
| # 获取所有已安装的 Node.js 版本 | |
| local versions=($(nvm ls --no-colors | awk '/^ *v[0-9]+\.[0-9]+\.[0-9]+/ {gsub(/^ +/, "", $1); print $1}')) | |
| # 按 major 分组，只保留每组最新的 | |
| declare -A latest_versions | |
| for v in "${versions[@]}"; do | |
| major=$(echo $v | cut -d. -f1 | tr -d 'v') | |
| latest_versions[$major]=$v | |
| done | |
| # 需要删除的版本 | |
| to_delete=() | |
| for v in "${versions[@]}"; do | |
| major=$(echo $v | cut -d. -f1 | tr -d 'v') | |
| if [[ $v != ${latest_versions[$major]} ]]; then | |
| to_delete+=("$v") | |
| fi | |
| done | |
| # 打印所有版本，红色为待删除，绿色为保留 | |
| for v in "${versions[@]}"; do | |
| major=$(echo $v | cut -d. -f1 | tr -d 'v') | |
| if [[ $v != ${latest_versions[$major]} ]]; then | |
| echo -e "${RED}$v (delete)${RESET}" | |
| else | |
| echo -e "${GREEN}$v (keep)${RESET}" | |
| fi | |
| done | |
| if (( ${#to_delete[@]} > 0 )); then | |
| echo -en "${YELLOW}Do you want to delete the red versions above? [y/N]: ${RESET}" | |
| read -r answer | |
| if [[ "$answer" =~ ^[Yy]$ ]]; then | |
| for v in "${to_delete[@]}"; do | |
| echo -e "${YELLOW}Uninstalling $v ...${RESET}" | |
| nvm uninstall $v | |
| done | |
| echo -e "${GREEN}Done.${RESET}" | |
| else | |
| echo -e "${RED}Aborted. No versions deleted.${RESET}" | |
| fi | |
| else | |
| echo -e "${YELLOW}No versions to delete.${RESET}" | |
| fi | |
| } | |
| # 用法：source nvm.sh 后执行 clean_nvm_versions |
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nvm-clean-major.sh
similar: nvm-sh/nvm#1195
before
process
result / after