我试图使用Perl复制我的C#/ XPath代码在
Linux上的作用.我在
Perl & XML中复制并粘贴了例8-6中的代码.如果我理解正确,我应该可以运行该Perl代码,将此代码放在终端中
xmlPerl.pl mydatafile.xml "/inventory/category/item/name"
[root@Perl ~]# perl xmlPerl.pl Can't locate XML/XPath.pm in @INC (@INC contains: /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at xmlPerl.pl line 3. BEGIN Failed--compilation aborted at xmlPerl.pl line 3.
我究竟做错了什么？我认为它与我的代码开头的XML和XPath名称有关.我是否需要安装一些东西才能使用XPath框架？我在RedHat 5.5上运行.
解决方法
从
perldiag开始：
Can’t locate %s
You said to do (or require,or use) a file that couldn’t be found. Perl looks for the file in all the locations mentioned in
@INC,unless the file name included the full path to the file. Perhaps you need to set thePERL5LIBorPERL5OPTenvironment variable to say where the extra library is,or maybe the script needs to add the library name to@INC. Or maybe you just misspelled the name of the file. Seerequireinperlfuncandlib.
您没有安装XML :: XPath模块,或者Perl没有找到它.使用CPAN安装模块：
> cpan XML::XPath
或包裹经理：
> apt-get install libxml-xpath-perl
或者,如果它已经安装,说明PERL5LIB环境变量的位置：
> PERL5LIB=/path/to/lib perl ...
@INC变量：
BEGIN {
unshift(@INC,'/path/to/lib');
}
或者lib pragma：
use lib '/path/to/lib';