1 更新apt-get

sudo apt-get update

2 安装jdk

查看jdk安装情况

Command 'java' not found, but can be installed with:sudo apt install default-jre              # version 2:1.11-72, or
sudo apt install openjdk-11-jre-headless  # version 11.0.13+8-0ubuntu1~20.04
sudo apt install openjdk-13-jre-headless  # version 13.0.7+5-0ubuntu1~20.04
sudo apt install openjdk-16-jre-headless  # version 16.0.1+9-1~20.04
sudo apt install openjdk-17-jre-headless  # version 17.0.1+12-1~20.04
sudo apt install openjdk-8-jre-headless   # version 8u312-b07-0ubuntu1~20.04

显示没有安装

## 安装
sudo apt-get install openjdk-8-jdk

3 安装 libreoffice

sudo apt install libreoffice

doc转docx

soffice --headless --invisible --convert-to docx apply-template.doc

需要被转的doc文件路径 ： apply-template.doc

成了！