Shell 从网页中提取文本并修剪

将输出如下内容：

wget --output-document=- http://www.tip.it/runescape/grand-exchange-centre 2>/dev/null \
| grep "The Grand Exchange updated" \

---

使用它不是很好，有什么提示吗？

您可以编写一个简短的Ruby脚本：

gem安装清理

创建一个名为“cleaner.rb”的文件：

然后

wget--output document=-http://www.tip.it/runescape/grand-exchange-centre 2> /dev/null\
|grep“大交易所更新”|./cleaner.rb

---

告诉您：“Grand Exchange在1天13小时0分56秒前更新”

如果可以选择使用lynx，您可以免费获得：

#!/usr/bin/env ruby -w
require 'rubygems'
require 'sanitize'

puts Sanitize.clean(gets).trim

如果需要，您可以从中删除前导文本：

$ lynx -dump http://www.tip.it/runescape/grand-exchange-centre | grep "The Grand Exchange updated"
The Grand Exchange updated 1 days, 19 hours, 8 minutes and 48 seconds ago

如果您确实想使用wget并去掉标记，可以使用以下方法：

$ foo="$(lynx -dump http://www.tip.it/runescape/grand-exchange-centre | grep "The Grand Exchange updated")"
$ echo "${foo#*updated }"
1 days, 19 hours, 9 minutes and 8 seconds ago

$wget--output document=-http://www.tip.it/runescape/grand-exchange-centre 2> /dev/null | grep“大交易所已更新”| sed-e's/]\+>///g'-e's/大交易所已更新//”
1天19小时17分2秒前

---

第一个选项可能是更好的选择。

我在Windows上使用cygwin，还可以安装gem吗？gem到底做什么？

$ lynx -dump http://www.tip.it/runescape/grand-exchange-centre | grep "The Grand Exchange updated"
The Grand Exchange updated 1 days, 19 hours, 8 minutes and 48 seconds ago

$ foo="$(lynx -dump http://www.tip.it/runescape/grand-exchange-centre | grep "The Grand Exchange updated")"
$ echo "${foo#*updated }"
1 days, 19 hours, 9 minutes and 8 seconds ago

$ wget --output-document=- http://www.tip.it/runescape/grand-exchange-centre 2>/dev/null | grep "The Grand Exchange updated" | sed -e 's/<[^>]\+>//g' -e 's/The Grand Exchange updated //'
1 days, 19 hours, 17 minutes and 2 seconds ago