使用bash

我有一個包含以下內容的XML文件通過XML標籤迭代 -使用bash

<File Name="something.txt" > 
<EmailWhenMissing>Customer</EmailWhenMissing> 
<CustomerEmail>[email protected]</CustomerEmail> 
</File> 
<File Name="somethingElse.txt" > 
<EmailWhenMissing>Customer</EmailWhenMissing> 
<CustomerEmail>[email protected]</CustomerEmail> 
</File>

有什麼辦法，或通過各<File>元素循環最好的方式，這樣我可以對他們分別執行命令？（即，這樣我就能夠識別哪個文件標籤有空白或缺失的元素）

來源

2017-08-28 Durn

我建議您使用XML模塊在perl或python中編寫腳本。 –

如果我正確理解你的目標是驗證存在於每個File領域，考慮以下爲相關的例子：

#!/bin/bash 
#  ^^^^- IMPORTANT: not /bin/sh 

sep=$'\v' # pick a character that can't be in your data 

while IFS="$sep" read -r Name EmailWhenMissing CustomerEmail; do 
    # the line below this provides verbose logging when running with bash -x 
    : Name="$Name" EmailWhenMissing="$EmailWhenMissing" CustomerEmail="$CustomerEmail" 
    [[ $EmailWhenMissing ]] || { echo "File $Name is missing EmailWhenMissing"; } 
    [[ $CustomerEmail ]] || { echo "File $Name is missing CustomerEmail"; } 
done < <(xmlstarlet sel -t -m '//File' \ 
      -v ./@Name -o "$sep" \ 
      -v ./EmailWhenMissing -o "$sep" \ 
      -v ./CustomerEmail -n)

鑑於以下輸入文件：

<root> 
    <File Name="something.txt"> 
    <EmailWhenMissing>Customer</EmailWhenMissing> 
    <CustomerEmail>[email protected]</CustomerEmail> 
    </File> 
    <File Name="somethingElse.txt"> 
    <EmailWhenMissing>Customer</EmailWhenMissing> 
    <CustomerEmail>[email protected]</CustomerEmail> 
    </File> 
    <File Name="NoEmailWhenMissing.txt"> 
    <CustomerEmail>[email protected]</CustomerEmail> 
    </File> 
    <File Name="NoCustomerEmail.txt"> 
    <EmailWhenMissing>Customer</EmailWhenMissing> 
    </File> 
    <File Name="EmptyFile.txt"/> 
</root>

...它的輸出是：

File NoEmailWhenMissing.txt is missing EmailWhenMissing 
File NoCustomerEmail.txt is missing CustomerEmail 
File EmptyFile.txt is missing EmailWhenMissing 
File EmptyFile.txt is missing CustomerEmail

隨着這裏對於bash的代碼，一些有用的閱讀：

BashFAQ #1 - 我怎樣才能讀取一個文件（數據流，可變）逐行（和/或逐場？）
BashFAQ #24 - 我在變量中設置了一個循環管道。爲什麼它們在循環終止後消失？或者，爲什麼我不能讀取數據？ - 解釋了< <(...)循環表單的推理。

來源

2017-08-28 15:10:33

您可以使用xmlstarlet

for f in $(xmlstarlet select -t -v '//File/@Name' file.xml) 
do 
    echo $f 
done

來源

2017-08-28 14:51:40

用於XMLStarlet的+1，用於提示'for'循環遍歷面向行的輸出。請參閱http://mywiki.wooledge.org/DontReadLinesWithFor –

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