Command 1 for sending messages in Linux, wall'... 'Wall is used to send messages to all users. The message content is included in. 2. write userName tty first use the who command to view online users and their tty, and then use the write command to
Linux server time verification 1. View server time drift [root @ localhost ~] # Ntpdate-d pool. ntp. org3 Jun 12:23:02 ntpdate [23209]: ntpdate 4.2.2p1@1.1570-o Thu Jan 22 02:50:41 UTC 2009 (1) Looking for host pool.ntp.org and service ntphost found:
Mount Command Format: mount [-t vfstype] [-o options] device dir where: 1.-t vfstype specifies the type of the file system, which is usually not required. Mount automatically selects the correct type. Common types include: optical disc or optical
Install nfs: # sudo apt-get install nfs-kernel-server Ubuntu 10.10 is already in the latest version. You do not need to install and open the/etc/exports file. Add the following at the end: /home/xgc * (rw, sync, no_root_squash) Note: nfs allows the
Run the find command to recursively delete a folder (svn) in linux. -name "*. svn "-type d-print-exec rm-rf {}\; (1 )". "indicates recursive search starting from the current directory. (2) "-name" svn "" is searched by name. (3) The "-type d" search
After installing Debian, we found that its built-in VI has the following problems:1) syntax highlighting is not supported. 2) deletion of the Backspace key is not supported. The VI In Debian is VIM-TINY. The program itself does not support syntax
Prerequisites: the latest version of GCC and libtool has been installed; installation script: 1tar zxf sysbench-0.4.12.tar.gz2cd sysbench-0.4.123. /autogen. sh4./configure -- with-mysql-related des = # MYSQL_HOME #/include -- with-mysql-libs = #
When developing an nfs server in an embedded linux system, nfs is often used to facilitate program debugging. With nfs, you can place the root file system used by the Board under the host directory. The Development Board mounts the file to this
In Windows, it is very easy to view the memory usage. I think everyone is familiar with it. How can I check the memory usage in linux?The following is a free command to view memory usage in Linux: [root @ scs-2 tmp] # free total used free shared
Description: if linux Log Files are cleared occasionally, the entire disk is filled. This is dangerous, so log management is one of the daily work of the system administrator. We can use "logrotate" to manage linux Log files, which can implement
Some unimportant alarms in the middle of the night will not affect the system and business, but no one will handle them until dawn is reported, fortunately, nagios provides an alarm extension vi/usr/local/nagios/etc/objects/escalations. includefine
The format of the print command in GDB print is: print xxx p xxx 1. print operator @ is an array-related operator, which will be described in more detail later.: Specifies a variable in a file or function. {} Indicates an object pointing to the
The BASH shell set command describes how to use the set command to set various shell options or list shell variables. set common features for a single option. after some options, the-o parameter opens special features. after some options, using the +
Using chroot to build a linux sandbox because an external website is mounted on the idc, idc permissions are generally not put out. I used to create ftp for a user who logged on to the shell as/bin/nologin. Now I want to go further, you can ssh to
Building a LAMP (Apache + PHP + MYSQL) development environment in Mint15 (or Ubuntu) is the simplest and most efficient and stable way to use apt-get in a Desktop linux environment. Run the following commands respectively: (1) install MYSQL sudo apt-
Common Vim commands and usage 1 switch insert mode: In command mode, insert the (lower case) cursor and then insert the (upper case) cursor at the end of the line to insert the I (lower case) insert I (uppercase) before the cursor start insert I
Learning how to generate an imgfile on Bochs 1. run bximage.exe; 2. command for generating image files: hd, flat, 1500, c. imghd: It is the format of your boot disk. | fd will create a bootable floppy disk image.: For some odd reasons you can use
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