简介

tldr(Too Long; Didn’t Read) 是一个开源的命令行工具，提供简洁的命令行使用文档

tldr 提供了 web端 tldr InBrowser.App, nodejs 和 python 客户端以及 PDF版本

安装

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# nodejs
npm install tldr

# python
pip3 install tldr

使用

tldr sed

sed

Edit text in a scriptable manner.
See also: `awk`, `ed`.
More information: https://www.gnu.org/software/sed/manual/sed.html.

- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in all input lines and print the result to `stdout`:
command | sed 's/apple/mango/g'

- Execute a specific script [f]ile and print the result to `stdout`:
command | sed -f path/to/script.sed

- Replace all `apple` (extended regex) occurrences with `APPLE` (extended regex) in all input lines and print the result to `stdout`:
command | sed -E 's/(apple)/\U\1/g'

- Print just a first line to `stdout`:
command | sed -n '1p'

- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in a specific file and overwrite the original file in place:
sed -i 's/apple/mango/g' path/to/file