comparison .ssh/onsubnet @ 186:83f164405755

New 'onsubnet' command, new config for master controls
author Steve Huston <huston@astro.princeton.edu>
date Tue, 03 Mar 2020 16:48:59 -0500
parents
children b00e6b403896
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185:daa1d18ece79 186:83f164405755
1 #!/usr/bin/env bash
2
3 if [[ "$1" == "--help" ]] || [[ "$1" == "-h" ]] || [[ "$1" == "" ]] ; then
4 printf "Usage:\n\tonsubnet [ --not ] partial-ip-address\n\n"
5 printf "Example:\n\tonsubnet 10.10.\n\tonsubnet --not 192.168.0.\n\n"
6 printf "Note:\n\tThe partial-ip-address must match starting at the first\n"
7 printf "\tcharacter of the ip-address, therefore the first example\n"
8 printf "\tabove will match 10.10.10.1 but not 110.10.10.1\n"
9 exit 0
10 fi
11
12 on=0
13 off=1
14 if [[ "$1" == "--not" ]] ; then
15 shift
16 on=1
17 off=0
18 fi
19
20 regexp="^$(sed 's/\./\\./g' <<<"$1")"
21
22 if [[ "$(uname)" == "Darwin" ]] ; then
23 ifconfig | fgrep 'inet ' | fgrep -v 127.0.0. | cut -d ' ' -f 2 | egrep -q "$regexp"
24 else
25 hostname -I | tr -s " " "\012" | fgrep -v 127.0.0. | egrep -q "$regexp"
26 fi
27
28 if [[ $? == 0 ]]; then
29 exit $on
30 else
31 exit $off
32 fi