用相同的单词替换一个词两次在UNIX

Question

我怎么能转换“一些文字run_id =头号一些文本”到一个号码，一个号码一些文字

之间SOME_TEXT run_id例如我想转换XYZ run_id = 1到1到1之间的run_id。在这个文本中1不是固定的。

Answer 1

sed 's/run_id = \([[:digit:]]\+\)/run_id between \1 and \1/g' 

使用\(和\)为捕获括号。一个 演示

sed 's/run_id = \([[:digit:]]\+\)/run_id between \1 and \1/g' <<END 
some text run_id = 1234 some text 
END 

some text run_id between 1234 and 1234 some text