36 lines
558 B
Bash
Executable File
36 lines
558 B
Bash
Executable File
#!/usr/bin/env bash
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if [[ $# < 1 ]] || [[ $# > 1 ]] ; then
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echo -e "
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\033[31m\033[1mNo hostname or too many parameters given.\033[m
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\033[1mUsage\033[m: $(basename $0) <hostname>
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"
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exit 1
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fi
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hostname=$1
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get_domain_by_hostname() {
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_domain=$1
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_tmp_domain="${_domain#*.}"
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while [[ "$_tmp_domain" =~ \. ]]; do
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_domain="$_tmp_domain"
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_tmp_domain="${_domain#*.}"
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done
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echo $_domain
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}
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domain="$(get_domain_by_hostname "$hostname")"
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echo ""
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echo " hostname: $hostname"
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echo " domain: $domain"
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echo ""
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exit 0
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