76 lines
1.7 KiB
Bash
Executable file
76 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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function help() {
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echo "Check the number of proftpd user with 'ftpcount' output."
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echo "Usage:"
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echo " check_proftpd_user -w|warning <WARN_THRESHOLD> -c|critical <CRITICAL_THRESHOLD>"
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}
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warn="-1"
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crit="-1"
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while [ $# -gt 0 ]; do
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case "${1}" in
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-h|--help)
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show_help
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exit 0
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;;
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-c|--critical)
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crit="${2}"
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shift
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shift
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;;
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-w|--warning)
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warn="${2}"
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shift
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shift
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;;
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*)
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>&2 echo "Error: unknown argument ${1}, exit."
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help
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exit 3
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esac
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done
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if [ "${warn}" == "-1" ]; then
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echo "Error: warning threshold no defined, exit."
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help
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exit 3
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fi
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if [ "${crit}" == "-1" ]; then
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echo "Error: critical threshold no defined, exit."
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help
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exit 3
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fi
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if [[ "${warn}" =~ [^0-9] ]]; then
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echo "Error: warning threshold must be an integer, exit."
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help
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exit 3
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fi
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if [[ "${crit}" =~ [^0-9] ]]; then
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echo "Error: critical threshold must be an integer, exit."
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help
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exit 3
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fi
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if ! command -v ftpcount > /dev/null; then
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echo "Error: missing 'ftpcount' command, cannot check users count."
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exit 3
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fi
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n_users="$(ftpcount | awk '/users/{print $4}')"
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if [ "${n_users}" -gt "${crit}" ]; then
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echo "CRITICAL - ${n_users} ftp users connected (warning: ${warn}, critical: ${crit})"
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exit 2
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elif [ "${n_users}" -gt "${warn}" ]; then
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echo "WARNING - ${n_users} ftp users connected (warning: ${warn}, critical: ${crit})"
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exit 1
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else
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echo "OK - ${n_users} ftp users connected (warning: ${warn}, critical: ${crit})"
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exit 0
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fi
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