Question

我想在一个已经写成两行的文件中加入行。例如，如下所示，我想加入第一行和第二行，它们分别具有作者的谚语和名称。我想要在文件中加入的所有类似事件。

我可以通过使用Shift + J手动加入它们，但是有近10000行并且它变得非常困难。

，119。，120.，是原始的源行号，也在行中。

所以我想搜索并加入所有在行开头有一个数字的行，然后是一个点，然后是一个空格，然后是文本.. ^ [0-9] *。（118.）和下一行在行的开头没有数字。加入他们吧。

我到处搜寻并尝试实施但没有用。

118. People don't care how much you know until they know how much they care.
John C. Maxwell
119. A life lived in fear is a life half lived. - Proverb
120. Nothing great was ever achieved without enthusiasm.     
Ralph Waldo Emerson
121. Damn the torpedoes, full speed ahead. - David Farragut
122. Our lives begin to end the day we become silent about things that matter. - 
Martin Luther King, Jr.

Answer 1

这应该这样做：

awk '/^[0-9]+\./ { if (last) print last; last = $0; next }
                 { print last, $0; last = "" }'

给定数据文件：

118. People don't care how much you know until they know how much they care. 
John C. Maxwell
119. A life lived in fear is a life half lived. - Proverb
120. Nothing great was ever achieved without enthusiasm. 
Ralph Waldo Emerson
121. Damn the torpedoes, full speed ahead. - David Farragut
122. Our lives begin to end the day we become silent about things that matter. - 
Martin Luther King, Jr.

产生输出：

118. People don't care how much you know until they know how much they care.  John C. Maxwell
119. A life lived in fear is a life half lived. - Proverb
120. Nothing great was ever achieved without enthusiasm.  Ralph Waldo Emerson
121. Damn the torpedoes, full speed ahead. - David Farragut
122. Our lives begin to end the day we become silent about things that matter. -  Martin Luther King, Jr.

代码确实假设只有一条延续线。如果你有多个延续线，那么你需要一个更复杂的脚本。

$ cat new.data
118. People don't care how much you know until they know how much they care. 
John C. Maxwell
119. A life lived in fear is a life half lived. - Proverb
120. Nothing great was ever achieved without enthusiasm. 
Ralph Waldo Emerson
121. Damn the torpedoes, full speed ahead. - David Farragut
122. Our lives begin to end the day we become silent about things that matter. - 
Martin Luther King, Jr.
123. More than one line of data causes trouble for the basic script.
A more complex script can deal with those too. -
Jonathan Leffler
$ awk '/^[0-9]+\./ { if (last) print last; last = $0; next }
>                  { last = last " " $0 }
>      END         { if (last) print last }' new.data
118. People don't care how much you know until they know how much they care.  John C. Maxwell
119. A life lived in fear is a life half lived. - Proverb
120. Nothing great was ever achieved without enthusiasm.  Ralph Waldo Emerson
121. Damn the torpedoes, full speed ahead. - David Farragut
122. Our lives begin to end the day we become silent about things that matter. -  Martin Luther King, Jr.
123. More than one line of data causes trouble for the basic script. A more complex script can deal with those too. - Jonathan Leffler
$

Answer 2

:%s/\n\%(\d\+\. \)\@!应该在vim中完成。此命令适用于多个延续行，但仅删除换行符;它不会插入空格或任何东西。

Answer 3

在awk中，“文件中没有空行和**第一行**”，预计领先空间也是如此：

$ awk '{printf "%s%s", ($1 ~ /^ *\*\*/? (NR>1?ORS:"") : OFS), $0} END {printf ORS}' file

{   # finish previous with ORS if current starts with a number and output it
    printf "%s%s", ($1 ~ /^ *\*\*/? (NR>1?ORS:"") : OFS), $0
} 
END {printf ORS} # closing ORS

Answer 4

这可能适合你（GNU sed）：

sed 'N;/\n[0-9]/!s/\n//;P;D' file

读取两行，如果第二行不以数字开头，请删除换行符。

另一种方式：

sed 'N;s/\n\([^0-9]\)/\1/;P;D' file

如何在linux中的文件中加入两行不同模式的行？

4 个答案: