Shell

#! /Bin/bashwhile ["1" = "1"] doclearecho "------------------------ menu --------------------" Echo "(1) service iptables restart" Echo "(2) iptables Add "Echo" (3) iptables Delete "Echo" (4) iptables stop "Echo" (5) iptables save (remember to save

We have introduced the core implementation principles of mainstream double-layer encryption shells,At the same time, we mentioned compatibility and simplified the encryption Shell Core while considering the security.This article mainly discusses

Example: Add a shellapi unit to use VaR Filepath: string; Shellreturn: integer; Begin Filepath: = file path + file name If filepath <> ''then Begin Shellreturn: = ShellExecute (handle, pchar ('open'), pchar (filepath), nil, nil, 1 ); If shellreturn

Shell processes a function as a small script and can pass parameters to it like a normal script. By default, all variables defined in the script are global variables. Local variable: Local temp. Passing arrays to funeter. The art of passing an

Preface: Through studying spark cluster scripts, take notes on some important shell script skills. *). Get the directory of the current script sbin=`dirname "$0"` sbin=`cd "$sbin"; pwd` Code comments:# The above code is a common technique for

For those who just started to learn shell scripts, it is very important to establish programming thinking. They must be able to express what they need to do in programming, the following are some examples of my learning and collection, which may be

In Oracle, you can use the dbms_job package to regularly execute PL/SQL and SQL processes. crontab can only be used for scheduled tasks at the operating system level, such as backup. This article describes the specific usage of crontab for memo. In

Shell programming Basics Leal Authorization license: Create sharing agreement GNU Free Documentation License Edited by: firehare, dbzhang800 We can use any text editor, such as gedit, kedit, emacs, VI, to write shell scripts. It must start with

Write shell program Execute shell program Shell programs have many features similar to C and other programming languages, but they are not as complex as programming languages. A shell program is a series of Linux commands and utilities stored in a

Original works can be reprinted. During reprinting, you must mark the original source, author information, and this statement in hyperlink form. Otherwise, legal liability will be held. Http://huangrs.blog.51cto.com/2677571/788379 These days I have

I. Arithmetic Operators: Operator DescriptionMing Example EndResult + Add integers;Concatenates strings, arrays, and hash tables.A hash table cannot have the same key. 1 + 1"ABC" + "def""ABC" + 123"A", "B" + "C""A", "

Http://fox.he100.com/showart.asp? Art_id = 122 & cat_id = 1 Prevent web shell attacks) Prevent web shell attacks) The virtual host Administrator has been working for one year, and has some knowledge about the prevention of Web shell in NT. Now we

Overview Wildcard is processed by shell. It only appears in the argument of the command-neither in command_name nor in options. When a wildcard is encountered in argument, shell will regard it as a path or file name to search for possible matching

Post: Http://blog.chinaunix.net/u1/43550/showart_372639.html 1. General wildcard characters Wildcard characters are used for pattern matching, such as file name matching, path name searching, and string searching. There are four common wildcards: *

Setuid on shell scripts Running software as root without requiring a root password is the subject of a number of tutorials on the web, and although it may seem a little bit confusing, it's fairly simple. inevitably, users want to run shell scripts

SELF: http://www.justwinit.cn/post/3702/ Shell time:A = 'date + % Y % m % d' Echo $; # Sh data. Sh 20101028 #! /Bin/sh # Log Mydate = 'date + % d % m % y' # Append mydate to the variable logfile that holds the actual filename of the log Logfile

Blog has been migrated, new address Bytes ---------------------------------------------------------------------------------------- In practice, you need to test the correctness of shell scripts. How can we test in the fastest and most effective

Shell syntax Variable: In Shell, we do not need to declare variables before using them. on the contrary, we can simply use it as needed. by default, all variables are stored as strings, although sometimes we use numbers to assign values to them.

From: http://blog.csdn.net/jingxiangren/article/details/4745631 In oracle, you can use the dbms_job package to regularly execute pl/SQL and SQL processes. crontab can only be used for scheduled tasks at the operating system level, such as

The peanut shell publishing website directly binds the website to a specific project-jboss version Add The practice is a bit unauthentic. If you have any other method, please let us know that it is not feasible to use the online comparison method,