#!/bin/bash

# Порог в процентах
THRESHOLD=90
# Email для уведомлений
EMAIL="[email protected]"

df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output; do
  usage=$(echo "$output" | awk '{ print $1}' | sed 's/%//')
  partition=$(echo "$output" | awk '{ print $2 }')
  if [ "$usage" -ge "$THRESHOLD" ]; then
    echo "Внимание! На разделе $partition занято $usage% диска." | mail -s "⚠️ Мало места на сервере" $EMAIL
  fi
done

   */30 * * * * /usr/local/bin/disk_check.sh