| 1 | #!/bin/bash
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| 2 |
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| 3 | # This script will echo the IPv4 of this unix machine. E.g. 100.200.300.45
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| 4 | # If passed -format-for-tomcat-context, it will echo the same with a pipe
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| 5 | # symbol up front and all the . escaped with a "\". E.g. "|100\.200\.300\.45"
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| 6 |
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| 7 | #http://www.wikihow.com/Find-Your-IP-Address-on-a-Mac#Finding_Your_Internal_IP_Using_the_Terminal_sub
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| 8 | #http://stackoverflow.com/questions/1469849/how-to-split-one-string-into-multiple-strings-in-bash-shell
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| 9 | #http://www.linuxforums.org/forum/red-hat-fedora-linux/193076-ifconfig-doesnt-display-ipv4-address.html
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| 10 |
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| 11 |
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| 12 | # The following echoes the IPv4, e.g. 100.200.300.45
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| 13 | # But need to still replace the . with \.
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| 14 |
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| 15 | #echo `ifconfig eth0 | grep "inet " | grep -v 127.0.0.1`|cut -d' ' -f 2|cut -d':' -f 2
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| 16 |
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| 17 | tmp=`ifconfig eth0 2>&1 | grep "inet " | grep -v 127.0.0.1`
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| 18 | # As below: if $tmp is empty, can just return |, as that doesn't really matter. Will be consistent with windows
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| 19 | if [[ $tmp = *"Device not found"* ]] || [[ -z "${tmp// }" ]]; then
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| 20 | # eth0 is not found on Kathy's machine where the default ethernet device has a different name
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| 21 | # But ifconfig on its own works there, so try that next
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| 22 | tmp=`ifconfig 2>&1 | grep "inet " | grep -v 127.0.0.1`
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| 23 | if [[ $tmp = *"Device not found"* ]] || [[ -z "${tmp// }" ]]; then
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| 24 | echo "|"
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| 25 | fi
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| 26 | fi
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| 27 |
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| 28 | # grab just the portion of the line we want
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| 29 | tmp=`echo $tmp|cut -d' ' -f 2|cut -d':' -f 2`
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| 30 |
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| 31 | # if requested to format the IPv4 for the solr.xml tomcat context file
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| 32 | if [ "$1" == "-format-for-tomcat-context" ]; then
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| 33 |
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| 34 | #http://stackoverflow.com/questions/13210880/replace-one-substring-for-another-string-in-shell-script
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| 35 | #${original_string//searchterm/$string_to_replace_searchterm_with}
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| 36 | replace="."
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| 37 | replacement="\."
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| 38 |
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| 39 | tmp=${tmp//$replace/$replacement}
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| 40 |
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| 41 | # next, if the tmp variable is not the empty string, prefix the | operator
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| 42 | # http://unix.stackexchange.com/questions/146942/how-can-i-test-if-a-variable-is-empty-or-contains-only-spaces
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| 43 | # Can just return | if $tmp is empty, as that doesn't really matter. Will be consistent with windows
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| 44 | if [[ ! -z "${tmp// }" ]]; then
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| 45 | tmp="|$tmp"
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| 46 | else
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| 47 | tmp="|"
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| 48 | fi
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| 49 |
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| 50 | fi
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| 51 |
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| 52 | echo $tmp
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| 53 |
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