获取日志$6到$NF的字段

如何获取日志从$6到$NF的字段
aa文件：
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:42043->[192.168.101.38] a b c
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:43241->[192.168.101.38] asdfasdf
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:59912->[192.168.101.38] 1 2 2
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:54701->[192.168.101.38]asdfas aaaa
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:59112->[192.168.101.38]asdf adfsaf adfsdd
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:44452->[192.168.101.38]
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:37467->[192.168.101.38]
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:49426->[192.168.101.38]
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:58209->[192.168.101.38]
Jun 19 16:40:19 192_168_101_38 snmpd[20032]: Connection from UDP: [192.168.100.3]:39767->[192.168.101.38]
方法一如下：

awk '{for(i=6;i<=NF;i++) printf " "$i;if (NF > 6) printf "\n";}' aa

方法二如下；
awk '{a=index($0,$6);print substr($0,a)}' aa

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