摘要： wireless extensionshttp://wireless.kernel.org/en/developers/Documentation/Wireless-Extensionshttp://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.Extensions.htmlhttp://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.html 阅读全文

摘要： fromhttp://stackoverflow.com/questions/6593605/how-to-do-arithmetic-operation-in-makefilejcomeau@intrepid:/tmp$ cat Makefile START=3END=5DIFF_SUB=$(shell echo $(END)-$(START)| bc)test:@echo it took $(DIFF_SUB) secondsjcomeau@intrepid:/tmp$ makeit took 2 secondsIf you're doing these inside the ta 阅读全文

摘要： fromhttp://alvinalexander.com/perl/perl-command-line-arguments-read-argsHow to read Perl command-line argumentsBy Alvin Alexander. Last updated: Aug 11, 2013Perl FAQ: How do I read command-line arguments in Perl?Note: If you want to handle simple Perl command line arguments, such as filenames and st 阅读全文