sed issue

Jorge Goncalvez goncal11@col.bsf.alcatel.fr
Thu Oct 4 00:07:00 GMT 2001


Hi, I have this code:
sprintf(buf, "arp -d %s; arp -s %s %s ",
			a, a, print_hw_addr(htype, hlen, haddr));
			
			
What I wanted to do is to take the third %s which is like this:
XX:XX:XX:XX:XX:XX to tranform it like this
XX-XX-XX-XX-XX-XX

I tried this:

  sprintf(buf, "arp -d %s; arp -s %s `echo %s | sed -g s/:/-/`",
                   a, a, print_hw_addr(htype, hlen, haddr));


But it didn't work why?

Thanks a lot for you precious help.


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