shell处理xml文档,求大神降临...

15050521092

各位大大...小弟初入shell,要在xml里面获取一个节点的内容,正常格式下获取到了.,
可是!!
情景重现:..
第一行就是下面这样,,
<?xml version="1.0" encoding="UTF-8"?><RequestControl><requestID>112771348280000002</requestID><DWLControl><requesterName>Demandware_1177000</requesterName><requesterLanguage>100</requesterLanguage><customerEnvironment>batch</customerEnvironment></DWLControl></RequestControl><TCRMTx><TCRMTxType>BEMaintainPerson</TCRMTxType>..........(还有好长好长!!)
我想要拿到上面标红,也就是requestID里面的那串数字,我该怎么做啊?!求助!!

reyleon

grep -Po '(?<=<requestID>)\d+'

15050521092

回复 2# reyleon


    这个只能截取到数字么..像<TCRMTxType>BEMaintainPerson</TCRMTxType>这样的不行啊...

ly5066113

回复 3# 15050521092


grep -Po '(?<=<TCRMTxType>)\w+?(?=</TCRMTxType>)'

15050521092

回复 4# ly5066113


    谢谢...

MMMIX

怎么没人建议楼主用 xpath?

jason680

回复 1# 15050521092

$ xmllint --xpath '/RequestControl/requestID' x.xml
<requestID>112771348280000002</requestID>
   

yjh777

1. [yjh@dhcp-12-151 kernel]$ cat k.tcl
   
2. #!/bin/sh
   
3. # -*- tcl -*-
   
4. # The next line is executed by /bin/sh, but not tcl \
   
5. exec tclsh "$0" ${1+"$@"}
   
6. 
   
7. lappend ::auto_path /usr/local/lib /usr/lib64 /usr/lib
   
8. package require tdom
   
9. 
   
10. set XML [exec cat [lindex $::argv 0]]
    
11. 
    
12. set dom [dom parse $XML]
    
13. set doc [$dom documentElement]
    
14. puts [$doc selectNodes {string(RequestControl/requestID)}]
    
15. 
    
16. [yjh@dhcp-12-151 kernel]$ cat k.xml
    
17. <?xml version="1.0" encoding="UTF-8"?>
    
18. <root>
    
19.   <RequestControl>
    
20.     <requestID>112771348280000002</requestID>
    
21.     <DWLControl>
    
22.       <requesterName>Demandware_1177000</requesterName>
    
23.       <requesterLanguage>100</requesterLanguage>
    
24.       <customerEnvironment>batch</customerEnvironment>
    
25.     </DWLControl>
    
26.   </RequestControl>
    
27.   <TCRMTx>
    
28.     <TCRMTxType>BEMaintainPerson</TCRMTxType>
    
29.   </TCRMTx>
    
30. </root>
    
31. [yjh@dhcp-12-151 kernel]$ ./k.tcl  k.xml
    
32. 112771348280000002
    

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