我的输入文件 input.txt 有两行,如下所示,我需要从第一行提取claimStartDate,从第二行提取claimEndDate。
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180409120000102" claimEndDate="2018-04-02" claimStartDate="2018-04-02" sourceSystemId="abcd" claimActionCode="00">
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180430120000281" claimEndDate="2018-04-17" claimStartDate="2018-04-17" sourceSystemId="abcd" claimActionCode="00">
rm input.txt
awk '/<ProfessionalClaim/' test.xml | head -1 > input.txt
awk '/<ProfessionalClaim/' test.xml | tail -1 >> input.txt
awk '{match($0, "claimStartDate=\"([^\"]+)\"", start); print start[1]} \
{match($0, "claimEndDate=\"([^\"]+)\"", end); print end[1]}' input.txt
答案1
$ awk '/F_LINE/ {match($0, "claimStartDate=\"([^\"]+)\"", start); print start[1]} \
/L_LINE/ {match($0, "claimEndDate=\"([^\"]+)\"", end); print end[1]}' input.txt
2018-04-02
2018-04-17
根据您的新信息进行编辑:
$ awk 'NR==1 {match($0, "claimStartDate=\"([^\"]+)\"", start); print start[1]} \
NR==2 {match($0, "claimEndDate=\"([^\"]+)\"", end); print end[1]}' input.txt
2018-04-02
2018-04-17
您还可以一次完成这一切:
$ grep "<ProfessionalClaim" text.xml \
| sed -n '1p;$p' \
| $ awk 'NR==1 {match($0, "claimStartDate=\"([^\"]+)\"", start); print start[1]} \
NR==2 {match($0, "claimEndDate=\"([^\"]+)\"", end); print end[1]}'
grep
查找所有包含<ProfessionalClaim
in 的行text.xml
sed
将行截断到第一个和最后一个 onylawk
将打印claimStartDate
第一行和ClaimEndDate
第二行
答案2
假设一些 XML 输入文档如下所示:
<?xml version="1.0"?>
<root>
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180409120000102" claimEndDate="2018-04-02" claimStartDate="2018-04-02" sourceSystemId="abcd" claimActionCode="00"/>
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180430120000281" claimEndDate="2018-04-17" claimStartDate="2018-04-17" sourceSystemId="abcd" claimActionCode="00"/>
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180430120000281" claimEndDate="2018-04-18" claimStartDate="2018-04-18" sourceSystemId="abcd" claimActionCode="00"/>
<ProfessionalClaim paymentIndicator="P" claimProcessedDateTime="20180430120000281" claimEndDate="2018-04-19" claimStartDate="2018-04-19" sourceSystemId="abcd" claimActionCode="00"/>
</root>
...我们可以用来从后面有另一个节点的每个节点中xmlstarlet
提取claimStartDate
属性值,以及下一个节点的属性值:ProfessionalClaim
ProfessionalClaim
ProfessionalClaim
claimEndDate
xmlstarlet select --template \
--match '//ProfessionalClaim[following-sibling::ProfessionalClaim/@claimEndDate]' \
--value-of 'concat(@claimStartDate, " ", following-sibling::ProfessionalClaim/@claimEndDate)' \
-nl input.txt
这首先匹配每个ProfessionalClaim
后面跟着另一个ProfessionalClaim
节点的节点。
对于每个这样的节点,属性的值与后续节点的属性claimStartDate
值连接,并使用单个空格字符作为分隔符。claimEndDate
ProfessionalClaim
鉴于我上面的示例文档,这将生成
2018-04-02 2018-04-17
2018-04-17 2018-04-18
2018-04-18 2018-04-19