Check, install, update OTRS package under CentOS 7. Requires lftp.

otrs-new-package.sh

#!/bin/sh

  FPATH="$(lftp -e 'cls -q -1 -D --sort=date /pub/otrs/RPMS/rhel/7/otrs*.noarch.rpm; exit' http://ftp.otrs.org/ 2>&1 | tail -1)"
 LATEST="${FPATH##*/}" #"
 LATEST="${LATEST%.rpm}"
CURRENT="$(rpm -q otrs)"

case "$1" in
  install|reinstall ) yum "$1" "http://ftp.otrs.org/$FPATH" ;;
  geturl   )              echo "http://ftp.otrs.org/$FPATH" ;;

  update   ) test "$LATEST" = "$CURRENT" && true   || yum install "http://ftp.otrs.org/$FPATH" ;;
  zbxcheck ) test "$LATEST" = "$CURRENT" && echo 0 || echo 1 ;;
  *        ) test "$LATEST" = "$CURRENT" && echo "$CURRENT is actual." || echo "$CURRENT can be updated to $LATEST" ;;
esac

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