(]): Go to the next folder.
command– up ARROW: Opens the folder that contains the current folder.
command–control– up ARROW: Opens the folder containing the current folder in a new window.
command– down ARROW: Opens the selected item.
Right arrow: Opens the selected folder. This shortcut is only valid in the list view.
Left arrow: Closes the selected folder. This shortcut is only valid in the list view.
Command-delete: Moves the selected item to the
Cloud Server ECS Linux, rm-rf means that once deleted files are irretrievable. However, if you do not have a file overwrite operation, you can first try to recover the file in a related way. This article gives a brief description of this.Https://help.aliyun.com/knowledge_detail/41197.html?spm=5176.7841174.2.6.uqC1asTry data recovery with Extundelete
Description
The following is the CentOS 6.5 ext4 file system as an experimental environment with tools for Extundelete.
During th
search forwardC-s Incremental SearchC-s Repeat Incremental SearchC-r Forward Incremental SearchC-r Repeat forward Incremental searchM-x query-replace-regexp using regular expressions to search for and replace Windows command (Window Commands)C-x 2 Horizontal Split paneC-x 3 Vertical Split paneC-x o Switch to other panesC-x 0 Closing panesC-x 1 Close all panes except the cursor panec-x ^ Enlarge PaneM-x Shrink-window shrinking panesM c-v Scrolling the contents of other panesC-x 4 F Open file in
three ways to recover from mistakenly deleting files, and there are two other common methods for recovering mistakenly deleting files.
① uses a high version of DOS to provide a recovery delete file function of the external command-"undelete", but when you use it to recover deleted files, you need to specify the file name, file name allows to contain wildcards.
② when Windows does not start, assume that the requirements are restored to the Recycle Bin
parameter) to the printer at the same time. The Run-time screen will display: "Print out Will is sent to LPT1"
(3) Choose the/test parameter only to do the simulation test (test) do not do the real write action. Using this parameter screen will show: "Simulation Only"
(4) Choose/u parameter does not use mirror image file data, directly according to the disk status of the Unformat.
(5) Select/PSRTN and repair hard disk partition table.
If you add/p,/L, and/test after the letter is equivalent
there is "illegal operation--is about to close" or "no response", of course, the "illegal operation" or "No response" program! Then reboot is recommended. But if you do not reboot, then there will be a similar strange problem in succession, because with the "illegal operation" or "no response" has put the system into a very unstable state.
26. Method of completely deleting any or lot files
Have you seen from some computer magazine newspaper that second-hand hard disk is easy to disclose priva
UPDATE Trigger
Alternative triggers
allow nested triggers to be used
recursive triggers
5.25: Create a trigger named Employee_deleted on the employee table, its function: When the table is deleted, first check whether the employee is a ' personnel department ' staff, if not can be deleted, otherwise undelete and display ' cannot delete ' Create TriggerEmployee_delete onDepartment AfterDelete
as
Begindeclary@x Char(Ten)
a message, when you perform Q exit, Mail will "get back" the information you have read and put it in the ~/mbox, and do not retrieve it after the pre-execution. If the Execute x command exits, the information is not retrieved.The three sentences are not difficult to understand, but not good translation (I level problem), also retained the originalList of all supported commands: LCommands is:Next, alias, print, type, type, print, visual, top, touch, preserve,Delete, DP, DT,
+ OPTION + L
Open the Downloads folder
SHIFT + DELETE
Put the selected items in the Trash
Shift +option + COMMAND + DELETE
Emptying the wastepaper basket
Command + Right-click the Trash
Safely emptying the Trash
General
Command + F3
Show Desktop
Command + '
After downloading and installing Cleanmymac on Mac, do you want to find cleanmymac tutorial ? In the CLEANMYMAC official website, provides the free Cleanmymac tutorial, and in the unceasing update, learns how to use the CLEANMYMAC3, solves the various problems encountered in the use, better cleans up the Mac computer.Click on the "Service Center" module in the Cleanmymac, which will bring up many common problems, download installation, registration activation and other kinds of tutorials. It is
restart your Mac computer, both of these can become very large.3, reasonable management of your "download"Download the Mac, download the file will be concentrated in the downloads, as a compressed package, decompression after the removal of the compressed package. After installing the application, delete the. dmg file.4. Empty the TrashMost of the time, we delete files that are generally not directly and completely deleted, and the deleted files are stored in the
habit is to let cmm2 himself to scan, and then see the detailed results, in the detailed results, clean up the "User cache Files" and "System cache files" in the names can understand the items (usually the most recently used app generated cache), after cleaning up a certain space can be freed. But when these caches are cleared, the next time you open those apps, the cache will be re-created, so try it out.Large and old files are used to find large volumes of files and folders on disk, as well a
1. Use the root user to create the/usr/local directory. rmov.sh#!/bin/shpara_cnt=$#Trash_dir= "/data01/.trash"For i in $*; Doif [$i = = "-rf"-o $i = = "-r"-O $i = = "F"]Then:Elsestamp= ' Date +%s 'Filename= ' basename $i 'MV $i $TRASH _dir/$fileName. $STAMPFiDone2, check the disk which space capacity is large, I am currently using the/DATA01 directory, in this directory created.
bigger than 50000000 bytes:/home/dean/mail/inbox/cur/1416671339_ 0.29886.dean-aspire-v7-481g,u=9646,fmd5=7e33429f656f1e6e9d79b29c3f82c57e:2,s/processing Mail; processed:23550; updated/new:23550, cleaned-up:0mu:ignoring because bigger than 50000000 bytes:/home/dean/mail/sent/cur/1416682079_ 0.29886.dean-aspire-v7-481g,u=1719,fmd5=7f8c0283f16925caed8e632086b81b9c:2,s/processing Mail; processed:24750; updated/new:24750, cleaned-up:0cleaning up messages [/home/dean/.mu/xapian]| Processing mail; pro
When you empty a trash operation, you occasionally encounter a hint that a file is being used that cannot be emptied, and sometimes you know that the file is not in use but you receive such hints. Share the following tips for solving this problem:
Open the Finder, menu bar "Finder-safely clear the trash ..." (or right click on the trash after holding CMD)
If th
= ' A ';
SELECT * from dba_segments WHERE segment_name= ' a_ind ';
129 Move the reassembly table space
ALTER TABLE A move tablespace USERS;
130 Rebuild Table Index
ALTER INDEX A_ind REBUILD;
131 set lines can move properties internally
ALTER TABLE A ENABLE ROW MOVEMENT;
132 in situ movement of the line
ALTER TABLE A SHRINK space;
133 View the information that the table stores
SELECT BYTES FORM dba_segments WHERE segment_name= ' A ';
SELECT owner,segment_name,bytes from dba_segments WHERE se
" + "W" key can close the current image, press "Apple key" + "S" key can store the current image, press "Apple key" + "Q" key can exit the application.
The ingenious use of other options
1. Press the "option" key + Clear the Trash can skip the "clear trash" warning and delete locked files in the trash.
2. Press the "Apple key" + drag image to change the curren
" + "W" key can close the current image, press "Apple key" + "S" key can store the current image, press "Apple key" + "Q" key can exit the application.
The ingenious use of other options
1. Press the "option" key + Clear the Trash can skip the "clear trash" warning and delete locked files in the trash.
2. Press the "Apple key" + drag image to change the curren
Aliyun mailbox can't get bank bill how to do?
Already in a certain bank to set the bill address for @aliyun.com mailbox, normally is this month XX charge the bill, but this month did not receive, the contact Bank has sent, and has not received a resend.
If this is the case, check to see if the trash is filtered into junk mail. If in the Trash, please send this phenomenon directly to account01@
1, in the Apple Mac interface we click "Finder" below the "Dock" to find the first button, then we click on "Enter" as shown in the following image.
2, after opening the interface you will find in the left menu has "application" option, we click it open Access.
3. In the application panel you will see all the programs you have installed on your computer, click "Uninstall Software" and click "Right" and click "Move to Trash" as shown in t
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