In some cases, we might need to generate a temporary file in the script and then put the file in the directory as the final file. (You can refer to the Ntop.spec file) There are several benefits, one of which is that temporary files are not unique,
Requirements: Batch (. bat) add more than one new domain name to hosts, first detect if the existing domain name is not added
Other domain names that do not already exist, add directly
Google search is there to find the code as follows:
Batch definition: As the name suggests, a batch file is a series of commands that are set up in a certain order as an executable text file with the extension bat or cmd. These commands are collectively referred to as batch commands.
Little
1. Example: Insert a record every 100 rows, and the first column of this record contains the line number, and the other columns are the same as the first row
#!/bin/sh
var= "00001" # variable
cat A.txt|awk ' nr==1 ' |while read Line # Get the
Overview
The three most important startup scripts for Tomcat:
Startup.bat
Catalina.bat
Setclasspath.bat
We analyzed the Startup.bat script in the last article.
Let's analyze the Catalina.bat script in this article.
As for
. HelpView Help information
. backup? Db? FILEBack up the database by:. Backup [main| ...] filename, the database name can be obtained by the. databases command, usually main, can be omitted, filename is the disk filename.
. Bail on| OffNo longer
In general, it is more logical to define the attributes of a class as private. However, read and assign operations on attributes are very frequent, therefore, in PHP5, two functions "__get ()" and "__set ()" are predefined to get and assign their
Format: for [parameter]% variable name in (related file or command) do execution command
Function: Executes specific commands on one or a set of files, strings, or on each object in the result of a command to achieve the desired result.Note: When
PHP date/time functionDefinitions and usageThe Mktime () function returns a Unix timestamp for a date.
The parameter always represents the GMT date, so IS_DST has no effect on the result.
The parameters can be left-to-right, and the empty
This article mainly introduces the PHP SPL standard library file operations (Splfileinfo and Splfileobject) instances, this article explains Splfileinfo used to obtain file details, Splfileobject traversal, find the specified row, Write CSV file and
1. Install PHP, configure PHPUnzip the PHP5 to the specified directory and place it directly on the C drive, i.e.: C:\phpModify the PHP directory under Php.ini-development to php.ini, open php.ini Modify the following content:Extension_dir = "./"
PHP/*three ways to annotate 2014/7/24 ctrl+j copy the current line*/ # // Echo"Hello World";//output A string Echo"";//2. Define variables to start with $$a= 890;//defines a variable $ A, where the data type is determined by the context of the
The first step is to find out the Java process PID: Grep-v "awk ' {print $2} ' The second step is to find the most CPU -Consuming threads : PS-MP pid-o Thread,tid,sort-rn-k9The third step is to convert the TID to a three- input system : printf
Effect Chart:
Core code:
Copy Code code as follows:
@echo off&setlocal enabledelayedexpansion
Set Li0=┌───────────────────┐
Set li1=│┌┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┐│1
FOR/L%%a in (2,1,18) do (set li%%a=│├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤│%%a)
Set
Most of the time we can't always be around our computers, and some files don't want anyone to know. So this time to a lock screen, is more appropriate. Today share a homemade lock screen tool, as follows.
Get ready• Operating system: I am here
I work in the application system are JSP, a large number of JavaScript programs, once out of the "Automation server can not create objects" problem, a large number of reports and inquiries can not save, puzzled the Ghost
Think, thousand taste
The definition of a variable
Type of ⚑ variable
Use of ⚑ variables
Variables are objects that exist in memory that can be constantly changed, we can think of memory as a street, there are many tenants in the street, each tenant will have their own
On-line Java application, in the peak of the Business Times often appear CPU run high, need to see real-time thread CPU situation, the following is a very good script, you can quickly export the CPU of each thread, combined with Jstack log, to the
As a Linux SA, many parts of the day-to-day operation of the script, and the server's IP is generally static IP or Mac binding, of course, the latter comparison is relatively cumbersome, and the former we can set the host name, IP information,
10.__set () __get () __isset () __unset ()-- application of four methods
In general, it is more logical to define the attributes of a class as private. However, the read of the property
and assignment operations are very frequent, so in PHP5, two
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