How to get cmdline arguments with getopt? 1

[frag]

Hi!

I need to grep some cmdline arguments for a c++ program.
I know how to handle this argc and argv - stuff...
but I heard of a thing called 'getopt', which should be much more comfortable.

How does this work? Can someone please drop me some lines of code?

Thanx!

frag patrick.metz@epost.de

 

[mbaranski]

This is from one of my c progs:


main(int argc, char *argv[])
{
int opt;

while ((opt = getopt(argc, argv, "df:l:qr&quot) != -1) {
switch (opt) {

case 'd' :
g_wbDebugFlag = 1;
break;

case 'f' :
filename = optarg;
break;

case 'l' :
logfile = optarg;
break;

case 'q' :
g_wbQuietFlag = 1;
break;

case 'r' :
g_wbRejectFlag = 1;
break;

default:
errcount++;
break;

}
}

This is how it's used:

usage: ./wbin [-d] [-f filename] [-l logfile] [-q] [-r]
-d Enable debugging information.
-f Input filename; default is WPR110D1.dat.
-l Set logfile name.
-q Enable quiet logging; do not dump logging to the screen.
-r Dump rejected records to filename.rej.

See the man page for getopt for more info->
shell%man getopt As always, I hope that helped!

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