Linux View log file Contents command tail, Cat, TAC, head, EchoTail-f Test.logYou will see that the screen is constantly being printed out. This time interrupts the first process ctrl-c,---------------------------How Linux displays a few lines of a file (in the middle of a few lines)Starting at line No. 3000, displays
Linux View log file Contents command tail, Cat, TAC, head, EchoTail-f Test.logYou will see that the screen is constantly being printed out. This time interrupts the first process ctrl-c,---------------------------How Linux displays a few lines of a file (in the middle of a few lines)Starting at line No. 3000, displays
The Linux Shell has a tail command that is commonly used to display the last N of a file's contentsBut in more cases, we want to run the program on the server side, and need to monitor the running log in real time, what is the way to scroll the log file contents in real time?Here you can use the
Linux View log file Contents command tail, Cat, TAC, head, EchoTail-f Test.logYou will see that the screen is constantly being printed out. This time interrupts the first process ctrl-c,---------------------------How Linux displays a few lines of a file (in the middle of a few lines)Starting at line No. 3000, displays
There is a tail command in the Linux shell that is used to display the last n lines of a file
But more often, we want to run the program on the server side, and need to monitor the running log in real time, what is the way to scroll to display log file content in real tim
The tail command outputs the end of the file, which, by default, displays the last ten lines of the file. It is often used to dynamically monitor the growth of the tail content of a file, for example to monitor changes in log file
The reason for this error is that there is a database in your database server with the same name!RESTORE DATABASE [student] from DISK = N ' g:\ backup files ' with file = 1, move n ' student ' to n ' G:\student.mdf ', move n ' Studen T_log ' to N ' g:\\student.ldf ', nounload,replace, STATS = ten, PASSWORD = ' 123456 'So add REPLACE or STOPAT after with to restore! But the database with the same name may be overwritten!MSSQL-The
Introduction
If the log file is not damaged due to various causes. The tail of log can be used to restore the database to the State in the event of a disaster.
For example:
. A complete backup is made in db_1 and a log backup is made at log_1 and log_2. Shortly af
The AIL command outputs the end of the file, which, by default, displays the last ten lines of the file. It is often used to dynamically monitor the growth of the tail content of a file, for example to monitor changes in log files. The t
View File and content processing-tail command, view processing-tail command1. Command description:
The tail command is used to display the end Of the file content. By default, tail only displays the last 10 lines of the
This is a creation in
Article, where the information may have evolved or changed.
Used primarily for the latest line view of Web service logs.
Package Main
Import"FMT""OS""Bytes")
Const (Defaultbufsize = 4096)
Func tail (filename string, n int) (lines []string,err error) {F,e: = os. Stat (filename)If E = = Nil {Size: = F.size ()var fi *os. FileFi,err = OS. Open (filename)If Err = = nil{B: = make ([]byte,defaultbufsize)SZ: = Int64 (Defaultbufsize)nn: =
At present, there are several open-source distributed log systems in the industry, such as notify + rsync, Facebook's scribe, Apache's chukwa, linkin's kafa, and cloudera's flume. For more information about these open-source distributed log systems, see this article. Article 1. Although these open-source log systems provide real-time
log backup (other articles later), only the last backup, so choose the latest one, or you can not restore. Here is another note, remember to choose: Then restore the log file, which is one of the most important steps: And then: Due to some problems in the experiment, after the redo, so the time to choose 22:19 minutes, I was in the 22:20 minutes to d
function: The tail command outputs the end of the file, which, by default, displays the last ten lines of the file.Displays the last 10 lines of each specified file to the standard output. If more than one file is specified, the program adds the corresponding file name as th
much here, just assign the time point to the time you accidentally deleted. And since the tail of the log is the last backup file, the Red-box section can be selected here:Now check again:As you can see, the data has been restored successfully.Summarize:Usually do not do backup, the problem to shout urgent, this is Gou have to pick up, there are some people like
tail of the log is the last backup file, the Red-box section can be selected here: Now check again: As you can see, the data has been restored successfully. Summary: Usually do not do backup, the problem to shout urgent, this is Gou have to pick up, there are some people like to see the big head of LDF directly deleted, after the problem will not blame Mi
The following error occurs when you restore a database file group:
MSG 3159, level 16, state 1, line 1The tail of the log for the database "testfile" has not been backedup. use backup log with norecovery to backup the log if it contains work you donot want to lose. use the
it.
Then continue the backup.
Then make a restore, as shown in figure:
To restore the full backup first, select the most recent, due to the characteristics of the log backup (later other articles), only to recognize the last backup, so choose the latest one, otherwise not restore.
Here's another note, remember to choose:
Then restore the log file, which
= N' E:\AdventureWorks.bak ' with FILE = @backupSetId, nounload, Norewind
GO
At this point, the database is in the "Restoring" stateIf you do not see the backup can be viewed with the following statement, and the SPID killed: [SQL] view plaincopyprint?
SELECT * from sys.sysprocesses WHERE dbid=db_id (' AdventureWorks ')
Execution Result:and kill.Then continue with the backup.And then restore,To restore the full backup, select the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.