阿克森雲登入 / 註冊English/中文/cn繁體/tw

Files and Paths

Linux First Steps · L1 · 第 2 / 6 節 · 約 8 分鍾

Use pwd, ls -la, and less before editing. Make a dated backup of configuration files.

cp -a /etc/app.conf /etc/app.conf.bak.$(date +%F)