redis dump script

dumpRedis.sh

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+#!/bin/bash
+
+# 备份目录
+BACKUP_DIR="/tmp/redisDumps"
+# Redis持久化文件路径（根据你的Redis配置文件进行调整）
+# 解析命令行参数
+while [[ "$#" -gt 0 ]]; do
+    case $1 in
+        --dumpFile) REDIS_DUMP_FILE="$2"; shift ;;
+        *) echo "Unknown parameter passed: $1"; exit 1 ;;
+    esac
+    shift
+done
+
+# 创建备份目录（如果不存在）
+mkdir -p $BACKUP_DIR
+
+# 执行Redis的BGSAVE命令来创建快照
+redis-cli BGSAVE
+
+# 等待持久化操作完成，可以使用 sleep 来等待几秒钟（视情况而定）
+sleep 5
+
+# 检查并重命名现有备份文件
+if [ -f $BACKUP_DIR/dump2.rdb ]; then
+    echo "Removing existing dump2.rdb"
+    rm -f $BACKUP_DIR/dump2.rdb
+fi
+
+if [ -f $BACKUP_DIR/dump1.rdb ]; then
+    echo "Renaming dump1.rdb to dump2.rdb"
+    mv $BACKUP_DIR/dump1.rdb $BACKUP_DIR/dump2.rdb
+fi
+
+if [ -f $BACKUP_DIR/dump.rdb ]; then
+    echo "Renaming dump.rdb to dump1.rdb"
+    mv $BACKUP_DIR/dump.rdb $BACKUP_DIR/dump1.rdb
+fi
+
+# 复制新的dump.rdb到备份目录
+echo "Copying new dump.rdb to $BACKUP_DIR"
+cp $REDIS_DUMP_FILE $BACKUP_DIR/dump.rdb
+
+echo "Backup completed successfully."
+