循环读取文件并使用 shell 将其写入另一个文件答案

【问题标题】：Loop to read from the file and write it to another file using shell循环读取文件并使用 shell 将其写入另一个文件
【发布时间】：2019-08-23 05:16:36
【问题描述】：

我有一个 xml 文件，其中包含以下内容

<SummaryRecordMapping>
<eName>Licensed Original MC TPE EXCESSIVE AUTH</eName>
<jobs>
<job>

<SummaryRecordMapping>
<eName>Licensed Reversal MC TPE EXCESSIVE AUTH</eName>
<jobs>
<job>

我想要像下面这样的输出

<SummaryRecordMapping>
<eName>Licensed Original MC This is New Deep</eName>
<jobs>
<job>

<SummaryRecordMapping>
<eName>Licensed Reversal MC This is New Deep</eName>
<jobs>
<job>

<SummaryRecordMapping>
<eName>Licensed Original MC This is Mayurika</eName>
<jobs>
<job>

<SummaryRecordMapping>
<eName>Licensed Reversal MC This is Mayurika</eName>
<jobs>
<job>

代码

#!/bin/bash
while read whole_line ;
do
name=`echo "$whole_line" | awk '{$1=""; print}'`
LO="<eName>Licensed Original MC ${name}</eName>"
awk -v diff="$LO" '{ if(NR==2) { print diff}
                              else {print $0} } ' southBalanceRecon.xml >>LO.xml

LR="<eName>Licensed Reversal MC ${name}</eName>"
awk -v diff="$LR" '{ if(NR==14) { print diff}
                              else {print $0} } ' LO.xml >> LR.xml
done < file.txt

文件.txt

C71 This is New Deep
C72 This is Mayurika

当我尝试运行我的代码时，我没有得到我上面提到的可能的输出。谁能告诉我我的代码有什么问题？

【问题讨论】：

标签： bash shell unix awk

【解决方案1】：

问题是你在循环中调用awk。让awk 进行循环。

查看What is "NR==FNR" in awk? 以了解NR==FNR 部分。

awk 'NR==FNR { a[NR]=$0; next }
     {
        $1=""
        for (i=1; i<=length(a); i++)  {
           if (i==2)
              print "<eName>Licensed Original MC" $0 "</eName>";
           else if (i==7)
              print "<eName>Licensed Reversal MC" $0 "</eName>";
           else
              print a[i];
        }
     }' southBalanceRecon.xml file.txt

【讨论】：