add command line info

README.md

@@ -16,6 +16,76 @@ The search criteria can be any of the following.
 * UID
 * username
 
+# Command Line Options
+
+    -a         Show all connections.
+    --drp      Don't resolve port names.
+    -i         Invert the sort.
+    -l         Show the listening ports.
+    -n         Don' resolve the PTRs.
+    --nc       Don\t use colors.
+    -S <sort>  The Net::Connection::Sort to use.
+    -t         Show only TCP connections.
+    -u         Show only UDP connections.
+    
+    -c <CIDRs>  A comma seperated list of CIDRs to search for.
+    --ci        Invert the CIDR search.
+    
+    -C    Show the command to the first space.
+    --Cl  Show the whole command.
+    
+    --cmd <cmds> A comma seperated list of commands to search for.
+    --cmdi       Invert the command search.
+    
+    -p <ports>  A comma seperated list of ports to search for.
+    --pi        Invert the port search.
+    
+    -P <protos> A comma seperated list of protocols to search for.
+    --Pi        Invert your protocol search.
+    
+    --pid <pids> A comma separated list of PIDs to search for.
+    --pidi       Invert the pid search.
+    
+    --ptrr <rgx>   A comma seperated list of regex to use for a PTR search.
+    --ptrri        Invert the RegexPTR search.
+    --lptrr <rgx>  A comma seperated list of regex to use for a local PTR search.
+    --lptrri       Invert the local RegexPTR search.
+    --rptrr <rgx>  A comma seperated list of regex to use for a remote PTR search.
+    --rptrri       Invert the remote RegexPTR search.
+    
+    --ptr <PTRs>   A comma seperated list of PTRs to search for.
+    --ptri         Invert the PTR search.
+    --lptr <PTRs>  A comma seperated list of local PTRs to search for.
+    --lptri        Invert the local PTR search.
+    --rptr <PTRs>  A comma seperated list of remote PTRs to search for.
+    --rptri        Invert the remote PTR search.
+    
+    -s <states>  A comma seperated list of states to search for.
+    --si         Invert the state search.
+    
+    -u <users>   A comma seperated list of usernames to search for.
+    --ui         Invert the username search.
+    
+    --uid <uids> A comma separated list of UIDs to search for.
+    --uidi       Invert the UID search.
+    
+    The default available sort methods are as below.
+    host_f   foreign host
+    host_fl  foreign host, local host
+    host_l   local host
+    host_lf  local host, foreign host
+    pid      process ID
+    port_f   foreign port, numerically
+    port_fa  foreign port, alphabetically
+    port_l   local port, numerically
+    port_la  local port, alphabetically
+    proto    protocol
+    ptr_f    foreign PTR
+    ptr_l    local PTR
+    state    state
+    uid      user ID
+    user     username
+
 # Installing
 
 ## FreeBSD