正则表达式找到匹配模式

Question

I need to parse this kind of text: 我需要解析这种文本：

Some text and some 9539 934580 numbers Total number = 45 and then some more text

I need to extract this: 我需要提取这个：

Output: 输出：

Total number = 45

with matching spaces... 有匹配的空间......

(NUMBER IS DIFFERENT FROM LINE TO LINE) （数字与线路不同）

How can i get this pattern in a regex? 我怎样才能在正则表达式中获得这种模式？

Thanks in advance 提前致谢

Answer 1

The regular expression is: 正则表达式是：

Total number = \d+

or 要么

Total number = [0-9]+

You can use this with grep : 您可以使用grep ：

grep -E -o 'Total number = [0-9]+' inputfile > outputfile

the -o option tells it to print just the part of the line that matches. -o选项告诉它只打印匹配行的部分。