unix shell scripting pdf

32428.7 Summary 32429th CGI Script 32529.1 What is a Web page? 32529.2 CGI 32529.3 connecting to a Web server 32629.4 CGI and HTM scripts 32629.4.1 Basic CGI Script 32629.4.2 Show shell command output 32829.4.3 using SSI 33029.4.4 Access Counter 33029.4.5 uses a link to display the current webEnvironment Variables 33229.4.6 Other common environment variables 33429.5 get and Post methods Introduction 33529.5.1 Get Method 33529.5.2 Post Method 34029.5.

files under/var/logPut all the commands in one file and build up the script, here is the simplest command to stack up the script, empty the log script.Cd /var/logCat /dev/null > messagesEcho “Logs cleaned up.”Expand: Three ways to empty logs and file contents[[emailprotected] ~]# echo >test.log [[emailprotected] ~]# >test.log [[emailprotected] ~]# cat /dev/null >test.logScenario: Preserve files and empty content.Two Shell language and category Introd

functionality is written in C or C + +, it can take two days, and generally, the script executes fast enough to allow people to ignore its performance problems. Examples of scripting languages are awk, Perl, Python, Ruby, and Shell. When to use the shell Because the shell appears to be a common feature between

What is a shell script Shell scripting (English: Shell script), also known as shell Command Draft, programmatic script, is a computer program and text file, the contents of a series of shell commands, through the

What is a shell script sample Let's look at an example: #!/bin/sh cd ~ mkdir shell_tut cd shell_tut for ((i=0; i Example explanation Line 1th: Specify the script interpreter, here is the interpreter with/bin/sh Line 2nd: Switch to the current user's home directory Line 3rd: Create a directory Shell_tut Line 4th: Switch to the Shell_tut directory Line 5th: Cycle conditions, 10 cycles

Learn Shell to now, always thought that they will not commit a very two problems, the result of this book last time made a very 2, integrity not protect AH!!! I'm under the test file path except wildcard * and? What can be used outside the same thing, the result of the $home under the implementation of RM. All right, the egg hurts for the whole afternoon! Return the wood to any one of the configuration files. Warn posterity, do not use RM Test wildcar

folders, and ended up with a single command line: xcopy /e C:\Windows\assembly\GAC_MSIL G:\GAC_MSIL Then look for the desired assembly in the copied directory. Ha, now we can look at the PS code, it will be a very enjoyable thing.In addition, I found an additional assembly "System.Management.Automation.dll" through the _sfx_manifest_ file and the Reflector Analysis assembly reference, and its EXE note is "Microsoft Command-Line Shell

Often, when people refer to the "Shell scripting language", they are bash,ksh,sh or other similar Linux/unix scripting languages emerging in their minds. Scripting languages are another way to communicate with a computer. Users can move the mouse and click on a variety of ob

Lynx 52424.2 Curl Program 52724.2.1 Installing Curl 52724.2.2 Explore Curl 52724.3 using ZSH to process the network 52824.3.1 TCP Module 52824.3.2 client/server mode 52924.3.3 using zsh for C/s programming 53024.4 Summary 533The 25th Chapter uses e-mail 53425.1 Linux e-Mail Basics 53425.1.1 e-mail in Linux 53425.1.2 Mail Delivery Agent 53525.1.3 Mail Delivery Agent 53625.1.4 Mail User Agent 53725.2 setting up a server 54025.2.1 SendMail 54125.2.2 Postfix 54325.3 sending messages using MAILX 545

Use PHP as the Shell scripting language, read the use of PHP as the Shell scripting language, -- English original: DarrellBrogdon, published in http://www.phpbuilder.com/columns/darrell20000319.php3) many may have thought about using PHP to write some program such as timed sending, but it is impossible to execute Darre

Use PHP as the Shell scripting language. We all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be well written. we all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be a g

display:Hello, Darrell brogdon! How is you today? [Dbrogdon@artemis dbrogdon]$PHP also contains the "$ARGV" array when it is written as a dynamic Web page, but there are some differences: when PHP is the Shell scripting language, "$argv [0]" corresponds to the file name of the script, and when used for dynamic Web page writing, "$argv [1]" Corresponds to the first parameter of the QueryString. Second, writ

How to use PHP as the Shell scripting language Probably a lot of people have thought of using PHP to write some timing letters and other programs, but there is no way to execute PHP on a regular basis;As we all know, PHP is a very good dynamic web development language (fast, short development cycle ...). ）。 But only a very small number of people realize that PHP can also be very good as the language of wr

How to use PHP as the Shell scripting language Probably a lot of people have thought of using PHP to write some timing letters and other programs, but there is no way to execute PHP on a regular basis;As we all know, PHP is a very good dynamic web development language (fast, short development cycle ...). ）。 But only a very small number of people realize that PHP can also be very good as the language of wr

Simonsu Blog Comment Wall Reader Wall Link About The SH scripting syntax in LinuxPlaying Linux all know the convenience of SH script, but how to write sh script is a novice and rookie problem like me. It is one thing to be able to write, and not to know is another. Holding a good study, the spirit of day up, we have time to see it, no harm. Here's a copy of a large section of the SH script's syntax description. Look slowl

shell script will output on the display:Hello, Darrell brogdon! How is you today?[Dbrogdon@artemis dbrogdon]$PHP also contains the "$ARGV" array when it is written as a dynamic Web page, but there are some differences: when PHP is the Shell scripting language, "$argv [0]" corresponds to the file name of the script, and when used for dynamic Web page writing, "$a

We all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be a good language for writing shell scripts. When PHP is used as a language for writing shell scripts, it is not as powerful as Perl or bash, but he has a good advantage, especially for people who are familiar with PHP but are not famil

As we all know, PHP is a very good dynamic web development language (fast, short development cycle ...). ）。 But only a few people realize that PHP can also be a good language for writing shell scripts, and when PHP is the language that writes the shell script, he's not as powerful as Perl or bash, but he has a good advantage. Especially for people like me who are familiar with PHP but don't know much about

value. You can use curly braces to tell the shell that we're printing num variables:num=2echo "This is the ${num}nd"This will print: This is the 2ndThere are many variables that are automatically set by the system, which are discussed later when these variables are used.If you need to work with mathematical expressions, you need to use programs such as expr (see below).In addition to the usual shell variab

As we all know, PHP (as the current mainstream development language) is a very good dynamic web development language (fast, short development cycle ...). ）。 But only a very small number of people realize that PHP (as the current mainstream development language) can also be very good as the language of writing shell scripts, when PHP (as the current mainstream development language) as the language of writing shell