Question

我想在两种模式之间添加一些大代码：

FILE1.TXT

This is text to be inserted into the File.

infile.txt

Some Text here
First
Second
Some Text here

我想在 First 和 Second 之间添加 File1.txt 内容：

期望的输出：

Some Text here
First
This is text to be inserted into the File.
Second
Some Text here

我可以使用sed命令搜索两个模式，但我不知道如何在它们之间添加内容。

sed '/First/,/Second/!d' infile

Answer 1

由于/r代表在文件中读取，因此请使用：

sed '/First/r file1.txt' infile.txt

您可以在此处找到一些信息：Reading in a file with the 'r' command。

为就地版添加-i（即sed -i '/First/r file1.txt' infile.txt）。

要执行此操作，无论字符是什么情况，请使用Use sed with ignore case while adding text before some pattern中建议的I标记：

sed 's/first/last/Ig' file

如评论中所示，上述解决方案只是在模式之后打印给定的字符串，而不考虑第二种模式。

要做到这一点，我会去拿一个带旗帜的awk：

awk -v data="$(<patt_file)" '/First/ {f=1} /Second/ && f {print data; f=0}1' file

鉴于这些文件：

$ cat patt_file
This is text to be inserted
$ cat file
Some Text here
First
First
Second
Some Text here
First
Bar

让我们运行命令：

$ awk -v data="$(<patt_file)" '/First/ {f=1} /Second/ && f {print data; f=0}1' file
Some Text here
First                             # <--- no line appended here
First
This is text to be inserted       # <--- line appended here
Second
Some Text here
First                             # <--- no line appended here
Bar

Answer 2

我想你可以试试这个

$ sed -n 'H;${x;s/Second.*\n/This is text to be inserted into the File\
&/;p;}' infile.txt

Answer 3

awk味道：

awk '/First/ { print $0; getline < "File1.txt" }1' File2.txt

Answer 4

这是我为了从patt_file插入模式而编写的一个bash代码片段。基本上不得不使用uniq删除一些重复的数据然后添加一些东西。我复制我需要放回使用lineNum值的东西，将它保存到past_file。然后在文件中匹配patMatch我将这些内容添加到。

   #This pulls the line number from row k, column 2 of the reduced repitious file       
   lineNum1=$(awk -v i=$k -v j=2 'FNR == i {print $j}' test.txt)    

    #This pulls the line number from row k + 1, coulmn 2 of the reduced repitious file
    lineNum2=$(awk -v i=$((k+1)) -v j=2 'FNR == i {print $j}' test.txt)

    #This pulls fields row 4, 2 and 3 column into with tab spacing (important) from reduced repitious file 
    awk -v i=$k -v j=2 -v h=3 'FNR == i {print $j"  "$h}' test.txt>closeJ.txt

    #This substitutes all of the periods (dots) for \. so that sed will match them
    patMatch=$(sed 's/\./\\./' closeJ.txt)

    #This Selects text in the full data file between lineNum1 and lineNum2 and copies it to a file 

    awk -v awkVar1=$((lineNum1 +1)) -v awkVar2=$((lineNum2 -1)) 'NR >= awkVar1   && NR <= awkVar2 { print }' nice.txt >patt_file.txt 

    #This inserts the contents of the pattern matched file into the reduced repitious file              
    #The reduced repitious file will now grow
    sed -i.bak "/$patMatch/ r "patt_file.txt"" test.txt

使用sed命令在File中的两个模式之间添加文本

4 个答案: