recover rm files linux

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Oracle Manual Full Recovery (iv) database recover data files in open state

Case 3: (Recover tablespace, database open state) --database Recover data files in open state (except system tablespace) (1) Simulation Environment: 06:10:52 sql> INSERT INTO scott.t01 values (4); 1 row created. 06:13:12 sql> INSERT INTO scott.t01 values (5); 1 row created. 06:13:13 sql> INSERT INTO scott.t01 values (6); 1 row created. 06:13:15 sql> comm

Linux common commands (4) RM command

RM is a dangerous command, especially when used, especially for novices, or the entire system will be destroyed in this command (e.g., RM *-rf under/(root directory)). So, before we execute RM, it's a good idea to check in which directory, exactly what to delete, and keep a high level of sanity in the operation.1 command format:RM [Options] File2 Command function

RM quickly deletes a large number of File/folder methods in Linux

Yesterday encountered a problem, in Linux there is a folder containing a large number of cache files (folders), the order of magnitude may be in millions, using RM-RF./* Delete Time is slow to unacceptable. Google for a while, found a way, the trial is really faster than the use of RM quickly a order of magnitude. Met

Recover deleted files by using the file (occupation process) descriptor

Recover deleted files by using the file (occupation process) descriptor(PS: The file is called by the process when it is started, or it is called by a process.) For example, a service writes a log file when it executes, and the log file is used by some process calls to log logs. )Now we simulate the state of the file (occupied process) being mistakenly deleted:[[email protected] ~]# echo 123123 > A.txt[[ema

Self-study linux shell3.4-file processing command touch CP MV RM

Click Back to learn the path of the Linux command line and shell script3.4-File Processing command touch CP MV RM1. touch命令 一是用于把已存在文件的时间标签更新为系统当前的时间(默认方式),它们的数据将原封不动地保留下来; 二是用来创建新的空文件。 Touch (options) (parameters)Options -A: or--time=atime or--time=access or--time=use only change the access time; -C: Or--no-create does not create any files or if the file does not exist. -

Debugfs Linux RM Delete recovery attempt to read block from filesystem resulted in short read while opening filesystem

Mapping forAn inodepunch, truncate Punch (or truncate) blocks fromAn inode by deallocating themsymlink Create a symbolic linkimap Calculate the lo Cation of an inodedump_unused Dump unused blocksset_current_time Set current time to use when setting FileSystem Fieldssupported_features Print features supported by Thisversion of E2FSPROGSDUMP_MMP Dump MMP Informationset_mmp_value, SMMP Set MMP Valueextent_open, E o Open inode forextent Manipulationzap_block, Zap Zap Block:fill with0, pattern, fli

Linux command detailed-RM

recursively.? ? ???? -V,?--verbose???? Detailed display of the steps performed???? --HELP Display this help message and exit???? --version output version information and exit4 . Command instance:instance one: Delete file , the system will first ask whether to delete. ?Command:RM file nameOutput:DescriptionAfter entering the RM log.log command, the system asks whether to delete the file after entering Y, and does not want to delete the data n.Exampl

The RM command in Linux is detailed

---linux delete files or directories command using Linux under RM commandUsers can use the RM command to delete unwanted files. The function of this command is to delete one or more files

Simple talk about the small skill of RM file deletion under Linux by Find command _linux

We often use the Find command for bulk operations, such as: bulk deletion of old files, batch modification, time based file statistics, file size based on document statistics, etc., in these operations, because RM Delete operations can lead to directory structure changes, if you want to use find combined with RM operations written script, Will encounter some trou

Audit __linux for RM commands on Linux systems

Audit for RM commands on Linux systems [Root@test ~]# Cat/etc/audit/audit.rules# This file contains the AUDITCTL rules and are loaded# Whenever the audit daemon is started via the initscripts.# The rules are simply the parameters that would to be passed# to Auditctl.# The Rule-delete All-D# Increase the buffers to survive stress events.# make this bigger for busy systems-B 320# Feel Free to add below this l

Linux Delete copy move file RM,MV,CP command

First look at the example Delete Copy move File command Linux Code Rm-rf/file -r: Recursive processing parameters-F: Force all files to be deleted Linux Code Cp/test1/file1/test3/file2 Copy the file1 to the test3 and rename it file2 Linux Code CP-A Test Test1 Copy

Tips for RM file deletion with the Find command under Linux

We often use the Find command to bulk operations, such as: bulk delete old files, batch modification, time-based file statistics, file size based file statistics, etc., in these operations, because the RM delete operation will cause the directory structure changes, if you want to use the operation of the find combined with RM script, Will encounter some trouble,

The RM command for Linux

Look at yourself:[Email protected] ~]#RM--Help usage: RM [options] ... File... Delete (unlink) file. -F,--force removal. Ignore files that do not exist, do not prompt for confirmation-I need to confirm before deleting-I ask for confirmation before deleting more than three files or recursively deleting them. This opt

Linux RM Delete File principle

Most of the time, we will find that a process is reading and writing to the current file, but we still can RM, is it strange? And under Windows, there will be an error, "The current file is being used", which has to be removed from the Linux under the principle of the file.       Linux is controlled by the number of link to delete the file, only if a file does n

Linux under RM Command modification, add Recycle Bin function "notes"

A script that is under the user root directory of Linux. BASHRC finally add the following code, you can modify the RM command, so that people will not be all the RM time to delete, but will be added to the Recycle Bin, the following is based on other people's data reference modified, not originalAfter joining, you need source. BASHRCWorking principle, redefining

Usage of Linux rm Delete file commands

Direct RM is OK, but to add a parameter-F: Rm-f file path -F is simply forced to delete, without any hint of the meaning To delete a file using an instance: Rm-f/var/log/httpd/access.log Will force deletion of/var/log/httpd/access.log this file To delete a directory use instance: Rm-rf/var/log/httpd/access The/v

Extundelete tool to recover deleted files by mistake

1. Install the dependency pack (E2fsprogs,e2fsprogs-libs,e2fsprogs-devel)# yum-y Install e2fsprogs* 2. Download and install extundelete-0.2.4.tar.bz2 #wgethttp:// nchc.dl.sourceforge.net/project/extundelete/extundelete/0.2.4/extundelete-0.2.4.tar.bz2 # tar-jxvfextundelete-0.2.4.tar.bz2 #cdextundelete-0.2.4 #./ configure--prefix=/usr/local/extundelete #makemakeinstall 3. Verify that the installation succeeded # cd/usr/local/extundelete/bin #./extundelete

One misuse of the Linux RM

Today, under Linux misuse of a rm-rf, experience painful, record.The reason is I deleted a file to the Recycle Bin, then the wrong thing to delete everything under the home to the Recycle Bin, and then I copied from the Recycle Bin back home directory instead of using recovery, because things in the home directory is a bit more impatient to give up, and then see only half copy, Directly under the terminal

Recover the files that were used in the process of mis-deletion

Principle: In the Linux system/proc partition holds the process directory and the name, contains the FD (file descriptor) and its sub-directory (the process opens the file link), if deleted a file, there is also an inode reference:/proc/process number/fd/file descriptor. As long as we know the process PID and file descriptor of the currently open file, FD can use the Lsof tool to list the files opened by th

Extundelete recover deleted files by mistake

NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... 00b0|000000000000000000000000 NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... 00c0|000000000000000000000000 NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... 00d0|000000000000000000000000 NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... 00e0|000000000000000000000000 NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... 00f0|00000000000000NBSP;00NBSP;00NBSP;00NBSP;00NBSP;00NBSP;00NBSP;00NBSP;00NBSP;00NBSP;|NBSP, .......... inodeisallocatedfil

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