OS Oracle database
Check oracle_sid on the database server,
Export | grep oracle_sid check whether it is the database to be managed
If not, write down the URL in the emctl start dbconsole,
Use a browser for management on the client. Log in
Linux Command: Date and time schedule-sleepHttp://linuxfab.cx/(14:14:24)Name: Sleep
Permission: All Users
Usage: Sleep [-- help] [-- version] Number [smhd]
Note: sleep can be used to delay the current action for a period of time.
Parameter
The Organization began to toss about Linux again. Ah, how nice it is to use Windows. No, the fault ......System: fedora 5Fault: Internet access is disabled by default after installationSecond fault: the gateway can be pinged but the web page cannot
In Linux, the entire system is a file system. Even a device Linux displays it as a file or folder.Setting file permissions in Linux can prevent intrusions.Body:File permissions in LinuxIn the current directory, use the LS-l command to check the
Recently, due to project requirements, we started to develop dynamic link libraries and call them in Linux. The GCC and G ++ compilers encountered a problem.
First. the CPP file is compiled with G ++ to generate a dynamic link library. so, then
After a while, some people decided to delete Linux because they were not used to Linux or the hard disk space was insufficient. Despite the smooth process of deleting Linux, Lilo was left. So how can we delete Lilo and restore the Windows Startup
1. grub4dos in the latest version:
Http://download.gna.org/grub4dos/grub4dos-0.4.4-2008-08-08.zipAfter downloading and decompressing the file, copy the grldr (non-grldr.mbr},grub.exe files in the directory to the C root directory. 2. boot. INI file
This is a common problem. When Sendmail is started, it will automatically find your host name. If you have not set it in advance, sendmail only obtains the IP address of your host instead of the host name. Unfortunately, when Sendmail obtains an IP
1. What is a Linux core file?
InProgramA crash occurs when a core file is generated in a specific directory (usually under the current directory. The core file is only a memory image (with debugging information added) and is mainly used for
Several steps are required to configure X11. The first step is to create an initial configuration file as a Super User:
# Xorg-configure
When xfree86 is used, type:
# Xfree86-configure
This will generate a configuration file named Xorg. conf.
Environment:
Required operating systems include: Linux 2.6 kernel (preferably 2.6.8 or later kernel versions), GCC, glibc and other software.
Run:Open a terminal and decompress the downloaded compressed package: Tar xzvf http_proxy.tar.gzThen CD
We all know that websites in China and the United States are very slow, but the use of LinuxMediumIn many cases, the software that configures the environment requires us to automatically install it by entering instructions.. Therefore, a good source
1. The directory configuration in Linux is configured in the "tree directory". The partition must be used with the tree directory! What are the two partitions required by the system during installation under the Preset conditions?
A: the root
1. in Linux, each device is treated as a file, and each device has a file name. For example, the hard disk file name of the IDE interface is/dev/HD [a-d]. The letter in the brackets is any one of a-d, that is,/dev/hda,/dev/HDB, /dev/HDC and/dev/HDD
After Apache 2.2.6 is installed in Linux, an error is reported when the HTTP service is started. It does not seem to affect the service usage, but it is also awkward.Bytes ------------------------------------------------------------------------------
Unetbootin for Linux
Related webpage
Unetbootin-Linux Live USB
Remastersys-copy the Linux system as a live CD
Install Linux Server guard on instalinux-plugin
Unetbootin for linux operation memo
Download unetbootin, chmod + x unetbootin *
For programming in Linux, two editors will certainly be heard of. vim and Emacs, I personally feel that these two editors and IDE are really incomparable.
I learned Emacs first and it was quite easy to use. So I didn't plan to learn Vim for the
Let's talk about how library files come from.
Take C as an example. If we write a program, we generally do not write all the functions in one file. Generally, we divide modules and then several files in one module, call these modules in the main
Document directory
Reference:
File Operations in Linux
1. Use System Call
Linux provides some system calls for file operations, including: open, read, write, close, lseek, ioctl, etc. (PS: system calls can be called in assembly language)
All
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