# NCtfU - 9/21 (Linux Basic)(A204) ###### tags: `新手場` `nctfu2022fall` :::success :::spoiler 目錄 [toc] ::: :::info [簡報連結](https://docs.google.com/presentation/d/11YzBYbm6Ne26vwN7iR-LxkJ7qcMjLc11HuEjhHC4z-Y/edit#slide=id.g15aecb361d7_0_112) [直播連結-part1](https://youtu.be/0kv-N2HabLk) [直播連結-part2](https://youtu.be/Qr3XCYCPcQc) ::: ## CTFd [點我開始冒險](https://ctfd.nctfu.csie.ncu.edu.tw/) --- - Linux 基本操作 - sudo - cd > cd - 可以到上一次的位置 [name=Oneb0ne] - pwd - ls (-l/-a/-al) - mkdir - rm - touch - chmod ([+|-]r(4)/w(2)/x(1)) <file> > 我都直接 777 ㄟXD [name=Oneb0ne] > e.g. > chmod 777 a.txt > chmod +r a.txt - find > 可以搭配pipe使用 ex: 找test資料夾底下的text file並印出 [name=Pierre] > ```bash > find ./test/ -name "*.txt" | xargs cat > ``` - cat - env - man [command] <!--伺服器掛ㄌ--> --- Writeup
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