37 lines
1.0 KiB
Bash
37 lines
1.0 KiB
Bash
#!/bin/bash
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# 要检查的目录
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TARGET_DIR="/data/dj_multictrl_data"
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# 最低剩余容量（单位 GiB）
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THRESHOLD=50
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# 当空间不足时，每次清理几个文件（按最旧）
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DELETE_COUNT=5
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# 当前剩余容量（GiB）
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AVAILABLE=$(df -BG "$TARGET_DIR" | awk 'NR==2 {gsub("G","",$4); print $4}')
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# 日志文件
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LOG_FILE="/var/log/disk_cleanup.log"
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echo "$(date '+%F %T') 当前剩余空间: ${AVAILABLE}G" >> "$LOG_FILE"
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if [ "$AVAILABLE" -lt "$THRESHOLD" ]; then
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echo "$(date '+%F %T') 空间低于 ${THRESHOLD}G，开始清理..." >> "$LOG_FILE"
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# 找出最旧的文件并删除
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find "$TARGET_DIR" -type f -printf "%T@ %p\n" \
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| sort -n \
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| head -n "$DELETE_COUNT" \
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| awk '{print $2}' \
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| while read FILE; do
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echo "$(date '+%F %T') 删除文件: $FILE" >> "$LOG_FILE"
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rm -f "$FILE"
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done
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echo "$(date '+%F %T') 清理结束" >> "$LOG_FILE"
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else
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echo "$(date '+%F %T') 空间充足，无需清理" >> "$LOG_FILE"
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fi
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