8

我想在两种模式之间添加一些大代码：

文件1.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 命令使用两种模式进行搜索，但我不知道如何在它们之间添加内容。

sed '/First/,/Second/!d' infile
4

4 回答 4

10

由于/r代表读取文件，请使用：

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

你可以在这里找到一些信息：Reading in a file with the 'r' command。

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

无论字符的大小写如何，要执行此操作，请使用 Use sed with ignore case while add text before some patternI中建议的标记：

sed 's/first/last/Ig' file

如评论中所述，上述解决方案只是在模式之后打印给定的字符串，而不考虑第二个模式。

为此，我会选择带有标志的 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
于 2013-05-30T12:40:24.603 回答
1

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
于 2013-05-30T12:39:48.817 回答
1

awk味道：

awk '/First/ { print $0; getline < "File1.txt" }1' File2.txt
于 2013-05-30T12:52:26.373 回答
0

这是我为从 patt_file 插入模式而编写的一段 bash 代码。基本上不得不使用 uniq 删除一些重复的数据，然后重新添加一些东西。我使用 lineNum 值复制我需要放回的东西，将其保存到 past_file。然后在我要添加内容的文件中匹配 patMatch。

   #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
于 2017-07-26T15:52:12.497 回答