sudo apt-get upgrade干嘛的

sudo apt-get upgrade 是用来进行安装包的更新，也就是对已经安装的软件进行版本的升级。它会检查本地安装的软件与本地软件列表的对比，如果发现本地安装版本较低，就会提示更新。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [Ubuntu系统升级及软件管理相关命令](https://blog.csdn.net/liangzc1124/article/details/110846054)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [linux命令：软件更新 sudo apt-get update 和 sudo apt-get upgrade](https://blog.csdn.net/Mark_md/article/details/107089815)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]