tldr/pages.zh_TW/common/echo.md

25 lines
577 B
Markdown
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

# echo
> 印出文字。
> 更多資訊:<https://www.gnu.org/software/coreutils/echo>.
- 印出一行文字(如果文字中沒有連續的空格,可以不加引號):
`echo "{{文字}}"`
- 印出包含環境變數的文字:
`echo "{{我的家目錄位於 $HOME}}"`
- 印出文字,但結尾不換行:
`echo -n "{{文字}}"`
- 將一段文字加到檔案的結尾:
`echo "{{文字}}" >> {{檔案}}`
- 將以「\\」開頭的跳脫序列轉換為特殊字元(例如「\t」會被顯示為水平定位字元
`echo -e "{{第一欄\t第二欄}}"`