シェル1

[root@naoki105 0816]# cat ip_sam
255.255.255.255
999.999.999.999
111.111.000.111
000.000.000.111
111.111.111.111
[root@naoki105 0816]#
[root@naoki105 0816]# cat ip_sam | grep -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | while read line ; do echo $line | grep -v ^000 ; done | tee result
255.255.255.255
999.999.999.999
111.111.000.111
111.111.111.111
[root@naoki105 0816]#
[root@naoki105 0816]# diff ip_sam result
4d3
< 000.000.000.111
[root@naoki105 0816]#