Linux shell脚本 - 获取String中的数字总和，同时保留String的总和数

Question

I have an xml file that has numbers within tags. Ex)

<REC_CNT>25000</REC_CNT>
<REC_CNT>25000</REC_CNT>
<REC_CNT>25000</REC_CNT>
<REC_CNT>11767</REC_CNT>

I need to get the sum of these numbers while at the same time the final output has to still have the tags around it.

<REC_CNT>86767</REC_CNT>

I've used awk already to remove the tags and add the numbers but that is not what I'm looking for. What I'm doing is a replace and if I only get the number then the replace will also replace every other number in that file that it is equal to, not just the REC_CNT... any input?

Answer 1

awk -v FPAT='([A-Z_]+)|([0-9]+)' '{ sum += $2; fname = $1 } END { print "<" fname ">" sum "</" fname ">" }'

This assumes that your tags are uppercase letters or underscores. Adjust the regular expression as appropriate.

Answer 2

您应该使用实际的XML处理器而不是基于正则表达式的文本管理工具。