-bash: class-dump: command not found

I have downloaded the class-dump from http://www.codethecode.com/projects/class-dump/. And I open class-dump with Terminal,but the result is following Last login: Fri Apr 22 16:46:57 on ttys000 yu-brooks-imac:~ yubrook$ /Users/yubrook/Desktop/class-dump ; exit; class-dump 3.3.3 (64 bit) Usage: class-dump [options]

where options are: -a show instance variable offsets -A show implementation addresses --arch choose a specific architecture from a universal binary (ppc, ppc64, i386, x86_64) -C only display classes matching regular expression -f find string in method name -H generate header files in current directory, or directory specified with -o -I sort classes, categories, and protocols by inheritance (overrides -s) -o output directory used for -H -r recursively expand frameworks and fixed VM shared libraries -s sort classes and categories by 开发者_开发百科name -S sort methods by name -t suppress header in output, for testing --list-arches list the arches in the file, then exit --sdk-root specify the SDK root path (full path, or 4.1, 4.0, 3.2, 10.6, 10.5, 3.1.3, 3.1.2, 3.1) logout

[Process completed]

I don't understand how to run the class-dump.Please help me. Thank you!

I tap the class-dump on the command line,the result is yu-brooks-imac:Desktop yubrook$ class-dump -bash: class-dump: command not found

By installing class-dump manually and downloading the class-dump in using this Steve Nygard. Then copy the class-dump file to the following location "/usr/local/bin". after this everything will work fine.

This is because the operating system does not recognize the current folder path. Navigate to the current folder that you have downloaded the code. Run as follows:

./class-dump