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With the new 'sf' and 'rf' aliases, this stanza isn't needed
author Steve Huston <huston@astro.princeton.edu>
date Tue, 24 Nov 2020 08:59:19 -0500
parents 83f164405755
children b00e6b403896
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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83f164405755 New 'onsubnet' command, new config for master controls
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1 #!/usr/bin/env bash
83f164405755 New 'onsubnet' command, new config for master controls
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2
83f164405755 New 'onsubnet' command, new config for master controls
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3 if [[ "$1" == "--help" ]] || [[ "$1" == "-h" ]] || [[ "$1" == "" ]] ; then
83f164405755 New 'onsubnet' command, new config for master controls
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4 printf "Usage:\n\tonsubnet [ --not ] partial-ip-address\n\n"
83f164405755 New 'onsubnet' command, new config for master controls
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5 printf "Example:\n\tonsubnet 10.10.\n\tonsubnet --not 192.168.0.\n\n"
83f164405755 New 'onsubnet' command, new config for master controls
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6 printf "Note:\n\tThe partial-ip-address must match starting at the first\n"
83f164405755 New 'onsubnet' command, new config for master controls
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7 printf "\tcharacter of the ip-address, therefore the first example\n"
83f164405755 New 'onsubnet' command, new config for master controls
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8 printf "\tabove will match 10.10.10.1 but not 110.10.10.1\n"
83f164405755 New 'onsubnet' command, new config for master controls
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9 exit 0
83f164405755 New 'onsubnet' command, new config for master controls
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10 fi
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11
83f164405755 New 'onsubnet' command, new config for master controls
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12 on=0
83f164405755 New 'onsubnet' command, new config for master controls
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13 off=1
83f164405755 New 'onsubnet' command, new config for master controls
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14 if [[ "$1" == "--not" ]] ; then
83f164405755 New 'onsubnet' command, new config for master controls
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15 shift
83f164405755 New 'onsubnet' command, new config for master controls
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16 on=1
83f164405755 New 'onsubnet' command, new config for master controls
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17 off=0
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18 fi
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19
83f164405755 New 'onsubnet' command, new config for master controls
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20 regexp="^$(sed 's/\./\\./g' <<<"$1")"
83f164405755 New 'onsubnet' command, new config for master controls
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21
83f164405755 New 'onsubnet' command, new config for master controls
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22 if [[ "$(uname)" == "Darwin" ]] ; then
83f164405755 New 'onsubnet' command, new config for master controls
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23 ifconfig | fgrep 'inet ' | fgrep -v 127.0.0. | cut -d ' ' -f 2 | egrep -q "$regexp"
83f164405755 New 'onsubnet' command, new config for master controls
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24 else
83f164405755 New 'onsubnet' command, new config for master controls
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25 hostname -I | tr -s " " "\012" | fgrep -v 127.0.0. | egrep -q "$regexp"
83f164405755 New 'onsubnet' command, new config for master controls
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26 fi
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27
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28 if [[ $? == 0 ]]; then
83f164405755 New 'onsubnet' command, new config for master controls
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29 exit $on
83f164405755 New 'onsubnet' command, new config for master controls
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30 else
83f164405755 New 'onsubnet' command, new config for master controls
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31 exit $off
83f164405755 New 'onsubnet' command, new config for master controls
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32 fi