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In the daily work of restoring the accidentally deleted syslog mdash;/var/log/messages software development in Linux, log files are often cleared out to facilitate problem locating. However, a common mistake for Linux beginners is to delete the log file directly, rather than deleting the log file content ....
In the daily work of restoring the
Using grep to restore accidentally deleted text files as long-term computer users will certainly experience accidental file deletion. files deleted on MacOSX and Windows will be imported to the recycle bin by default. In Linux, if you do not use the alias (alias) to modify t
the memory rather than on the hard disk.
Next we will simulate the process of accidental data deletion to see how to restore data from/proc without the process being closed.
First, we have an echo_red.sh file. let's check the content of this file in session 1.
At this point, in another session 2, a process is modifying this file:
Then the file is deleted by mistake in session 1:
Session 1
Ses
View tables in the recycle bin
Select object_name, original_name, partition_name, type, ts_name, createtime, droptime from recyclebin;
Restore table
SQL> flashback table test_drop to before drop; orSQL> flashback table "bin $ B + xkko1rs5k10uko9bfmua = $0" to before drop;
Note: The full-text index cannot be restored because it must be available in 9i or 10 Gb or later versions.
References:
Using
through the lsof tool. lsof means "list open files, list files opened by (processes ". then you can copy the data to be restored from/proc.
The following describes how to use lsof to restore accidentally deleted files on the Fedora Core 5 system:
Environment
HOST: a vmware-based virtual independent host is used.
System: Fedora Core 5
Kernel: BRL. 16-1.2122 _ F
Restore table accidentally deleted records, and delete table records by mistakeRestore table accidentally deleted records
I recently handled a user's accidental deletion of the delete table. Here I made a simple summary. The content of this article is based on the essence of
As an enterprise-level server, Linux is crucial to data security. accidental deletion of any valuable data is intolerable and may even cause a major disaster! As a linux system administrator, you must have the data protection function. you must not only back up data, but also restore important data after accidental deletion. here we will introduce an open-source data recovery tool ext3grep, which can restore
The table deletion record recovery operation recently handled the fault of accidentally deleting deletetable by users. Here we made a simple summary. The content of this article is based on the essence of the masters in pub, I am using it for a while. Basic Solution: 1. If no submission is made, use rollback. (It should be unlikely .) 2. If the submission time exceeds 5 minutes
The table accidental deletion record recovery operation recently handled a
In CentOS, if a file is accidentally deleted, perform the following steps to restore the file. 1. disable all services. when files are deleted by mistake, in order to restore data as much as possible, you must first disable all ongoing services and avoid data writing, otherw
directory is mounted to a region mapped in the memory. Therefore, these files and directories are not stored in the disk. Therefore, when we read and write these files, in fact, it is getting the relevant information from the memory. Most lsof-related information is stored in the directory named after the PID of the process, that is, the/proc/1116 contains information about the process whose PID is 1116. Each process directory contains various files, which allow applications to easily understan
As an enterprise-level server, Linux is crucial to data security. accidental deletion of any valuable data is intolerable and may even cause a major disaster! As a Linux system administrator, you must have the data protection function. You must not only back up data, but also restore important data after accidental deletion. here we will introduce an open-source data recovery tool ext3grep, which can restore
I used to see a lot of questions on the Internet about how to restore files accidentally deleted in Linux partitions. I did not pay close attention to it at that time. I did not expect it to be shared with me yesterday. Let's talk about the whole process of this tragedy (to avoid unnecessary troubles, the folder name and device name in this article have been modi
Restore accidentally deleted files in CentOS
In CentOS, if a file is accidentally deleted, perform the following steps to restore the file.
1. Disable all services
When a file is accidentally
This article mainly describes the correct operation steps for restoring a table accidentally deleted by DB2. If you are interested in the correct operation steps for restoring a table accidentally deleted by DB2, the following articles will unveil its mysteries. I hope you will gain some benefits after browsing.
A test
block is 1024/4 = 256 ). If a larger file exists, the second-level indirect block and third-level indirect block appear in the node.2. Restore the accidentally deleted fileMost Linux distributions provide a debugfs tool for editing ext2 file systems. However, there is still some work to do before using this tool.First, Remount the partition where the
Restore accidentally deleted files under CentOS6.x
When you realize that a file is accidentally deleted, do not write the file frequently. Otherwise, your data recovery volume will be small. What we need to do is to immediately stop all the services on the server and directl
Due to accidental deletion of Oracle table data, this data may be very important. How to quickly restore the data so that the supervisor does not discover it can write a stored procedure to restore the first data deleted
Due to accidental deletion of Oracle table data, this data may be very important. How to quickly restore
How can I quickly restore my mobile phone's memory by mistake? The memory size of my mobile phone is getting bigger and bigger, just a dozen g's at will. This is really suitable for me. I am not diligent, it will be cleaned up after you think of it. When I used a cell phone with small memory, I often got a cell phone card change. Now I have this large-capacity cell phone, so I don't have to worry about this problem! Not long
How can I quickly
How to Use Lsof to restore accidentally deleted files in Linux: stores the Directory and name of the process in the/proc partition of Linux, including fd (file descriptor) and its sub-directories (links to process open files), if a file is deleted, there is also an inode reference:/proc/process number/fd/file descripto
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