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labunixのラボUnix

IPアドレスとそれに連動したホスト名を作ってみる小ネタ。

254台分。

$ echo {sv,192.168.0.}{001..254} | awk '{for(a=1;a<=NF;a++){if(a<255){print $a,$(a+254)}}}'
sv001 192.168.0.001
sv002 192.168.0.002
sv003 192.168.0.003
sv004 192.168.0.004
sv005 192.168.0.005
sv006 192.168.0.006
sv007 192.168.0.007
sv008 192.168.0.008
sv009 192.168.0.009
sv010 192.168.0.010
sv011 192.168.0.011
sv012 192.168.0.012
sv013 192.168.0.013
sv014 192.168.0.014
sv015 192.168.0.015
sv016 192.168.0.016
sv017 192.168.0.017
sv018 192.168.0.018
sv019 192.168.0.019
sv020 192.168.0.020
sv021 192.168.0.021
sv022 192.168.0.022
sv023 192.168.0.023
sv024 192.168.0.024
sv025 192.168.0.025
sv026 192.168.0.026
sv027 192.168.0.027
sv028 192.168.0.028
sv029 192.168.0.029
sv030 192.168.0.030
sv031 192.168.0.031
sv032 192.168.0.032
sv033 192.168.0.033
sv034 192.168.0.034
sv035 192.168.0.035
sv036 192.168.0.036
sv037 192.168.0.037
sv038 192.168.0.038
sv039 192.168.0.039
sv040 192.168.0.040
sv041 192.168.0.041
sv042 192.168.0.042
sv043 192.168.0.043
sv044 192.168.0.044
sv045 192.168.0.045
sv046 192.168.0.046
sv047 192.168.0.047
sv048 192.168.0.048
sv049 192.168.0.049
sv050 192.168.0.050
sv051 192.168.0.051
sv052 192.168.0.052
sv053 192.168.0.053
sv054 192.168.0.054
sv055 192.168.0.055
sv056 192.168.0.056
sv057 192.168.0.057
sv058 192.168.0.058
sv059 192.168.0.059
sv060 192.168.0.060
sv061 192.168.0.061
sv062 192.168.0.062
sv063 192.168.0.063
sv064 192.168.0.064
sv065 192.168.0.065
sv066 192.168.0.066
sv067 192.168.0.067
sv068 192.168.0.068
sv069 192.168.0.069
sv070 192.168.0.070
sv071 192.168.0.071
sv072 192.168.0.072
sv073 192.168.0.073
sv074 192.168.0.074
sv075 192.168.0.075
sv076 192.168.0.076
sv077 192.168.0.077
sv078 192.168.0.078
sv079 192.168.0.079
sv080 192.168.0.080
sv081 192.168.0.081
sv082 192.168.0.082
sv083 192.168.0.083
sv084 192.168.0.084
sv085 192.168.0.085
sv086 192.168.0.086
sv087 192.168.0.087
sv088 192.168.0.088
sv089 192.168.0.089
sv090 192.168.0.090
sv091 192.168.0.091
sv092 192.168.0.092
sv093 192.168.0.093
sv094 192.168.0.094
sv095 192.168.0.095
sv096 192.168.0.096
sv097 192.168.0.097
sv098 192.168.0.098
sv099 192.168.0.099
sv100 192.168.0.100
sv101 192.168.0.101
sv102 192.168.0.102
sv103 192.168.0.103
sv104 192.168.0.104
sv105 192.168.0.105
sv106 192.168.0.106
sv107 192.168.0.107
sv108 192.168.0.108
sv109 192.168.0.109
sv110 192.168.0.110
sv111 192.168.0.111
sv112 192.168.0.112
sv113 192.168.0.113
sv114 192.168.0.114
sv115 192.168.0.115
sv116 192.168.0.116
sv117 192.168.0.117
sv118 192.168.0.118
sv119 192.168.0.119
sv120 192.168.0.120
sv121 192.168.0.121
sv122 192.168.0.122
sv123 192.168.0.123
sv124 192.168.0.124
sv125 192.168.0.125
sv126 192.168.0.126
sv127 192.168.0.127
sv128 192.168.0.128
sv129 192.168.0.129
sv130 192.168.0.130
sv131 192.168.0.131
sv132 192.168.0.132
sv133 192.168.0.133
sv134 192.168.0.134
sv135 192.168.0.135
sv136 192.168.0.136
sv137 192.168.0.137
sv138 192.168.0.138
sv139 192.168.0.139
sv140 192.168.0.140
sv141 192.168.0.141
sv142 192.168.0.142
sv143 192.168.0.143
sv144 192.168.0.144
sv145 192.168.0.145
sv146 192.168.0.146
sv147 192.168.0.147
sv148 192.168.0.148
sv149 192.168.0.149
sv150 192.168.0.150
sv151 192.168.0.151
sv152 192.168.0.152
sv153 192.168.0.153
sv154 192.168.0.154
sv155 192.168.0.155
sv156 192.168.0.156
sv157 192.168.0.157
sv158 192.168.0.158
sv159 192.168.0.159
sv160 192.168.0.160
sv161 192.168.0.161
sv162 192.168.0.162
sv163 192.168.0.163
sv164 192.168.0.164
sv165 192.168.0.165
sv166 192.168.0.166
sv167 192.168.0.167
sv168 192.168.0.168
sv169 192.168.0.169
sv170 192.168.0.170
sv171 192.168.0.171
sv172 192.168.0.172
sv173 192.168.0.173
sv174 192.168.0.174
sv175 192.168.0.175
sv176 192.168.0.176
sv177 192.168.0.177
sv178 192.168.0.178
sv179 192.168.0.179
sv180 192.168.0.180
sv181 192.168.0.181
sv182 192.168.0.182
sv183 192.168.0.183
sv184 192.168.0.184
sv185 192.168.0.185
sv186 192.168.0.186
sv187 192.168.0.187
sv188 192.168.0.188
sv189 192.168.0.189
sv190 192.168.0.190
sv191 192.168.0.191
sv192 192.168.0.192
sv193 192.168.0.193
sv194 192.168.0.194
sv195 192.168.0.195
sv196 192.168.0.196
sv197 192.168.0.197
sv198 192.168.0.198
sv199 192.168.0.199
sv200 192.168.0.200
sv201 192.168.0.201
sv202 192.168.0.202
sv203 192.168.0.203
sv204 192.168.0.204
sv205 192.168.0.205
sv206 192.168.0.206
sv207 192.168.0.207
sv208 192.168.0.208
sv209 192.168.0.209
sv210 192.168.0.210
sv211 192.168.0.211
sv212 192.168.0.212
sv213 192.168.0.213
sv214 192.168.0.214
sv215 192.168.0.215
sv216 192.168.0.216
sv217 192.168.0.217
sv218 192.168.0.218
sv219 192.168.0.219
sv220 192.168.0.220
sv221 192.168.0.221
sv222 192.168.0.222
sv223 192.168.0.223
sv224 192.168.0.224
sv225 192.168.0.225
sv226 192.168.0.226
sv227 192.168.0.227
sv228 192.168.0.228
sv229 192.168.0.229
sv230 192.168.0.230
sv231 192.168.0.231
sv232 192.168.0.232
sv233 192.168.0.233
sv234 192.168.0.234
sv235 192.168.0.235
sv236 192.168.0.236
sv237 192.168.0.237
sv238 192.168.0.238
sv239 192.168.0.239
sv240 192.168.0.240
sv241 192.168.0.241
sv242 192.168.0.242
sv243 192.168.0.243
sv244 192.168.0.244
sv245 192.168.0.245
sv246 192.168.0.246
sv247 192.168.0.247
sv248 192.168.0.248
sv249 192.168.0.249
sv250 192.168.0.250
sv251 192.168.0.251
sv252 192.168.0.252
sv253 192.168.0.253
sv254 192.168.0.254