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=/var/Log4Root_uid=0# When $uid is 0, the user has the root user's permission5 #要使用root用户来运行6 if["$UID"-ne"$ROOT _uid"]7 Then8Echo"must is root to run this script."9Exit1Ten fi OneCD $LOG _dir | |{#如果cd没有执行成功就执行大括号中的内容 AEcho"cannot change to Nessarg directory">2 -Exit1 - } thecat/dev/NULL>Messages -Echo"Logs cleaned up" -Exit0 -#退出之前0表示成功, returning 1 means failureThree ways to empty a log1 echo >test.log #输入空的内容 2 >test.log3 cat/dev/null > test.log #查看黑洞, redirect black hole to file 4 app: Kee
Learn the first script from the shell, thanks to cloud Li Qiangqiang Teacher's shell programming tutorial To create a shell script file:Touch menu.shTouch index.shTouch welcome.sh To give the script file permission to execute:chmod a+x menu.sh index.sh welcome.sh menu.sh #!/bin/bash#menu.shfunctio
Use PHP as the Shell scripting language, read the use of PHP as the Shell scripting language, -- English original: DarrellBrogdon, published in http://www.phpbuilder.com/columns/darrell20000319.php3) many may have thought about using PHP to write some program such as timed sending, but it is impossible to execute Darre
general, environment variables are used only in logon scripts. Here's what this is about, and we'll touch on the real part of the specific Linux shell scripting basics.Learn more about Linux Shell Scripting Basics (II.)Linux Shell Scr
Use PHP as the Shell scripting language. We all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be well written. we all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be a g
display:Hello, Darrell brogdon! How is you today? [Dbrogdon@artemis dbrogdon]$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
How to use PHP as a 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 as S. 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 a
curly braces to tell the shell that we're printing num variables: num=2 echo "This is the ${num}nd" This will print: This is the 2nd There are many variables that are automatically set by the system, which are discussed later when these variables are used. If you need to work with mathematical expressions, you need to use programs such as expr (see below). In addition to the usual shell variables that are
: This article describes how to use PHP as a Shell script language. For more information about PHP tutorials, see. We all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be a good language for writing Shell scripts. When PHP is used as a language for writing
output on the monitor: Hello, Darrell brogdon! How are are you today?[Dbrogdon@artemis dbrogdon]$ PHP also contains an array of "$ARGV" when writing language as a Dynamic Web page, however, there are some differences: when PHP as a shell scripting language, "$argv [0]" corresponds to the script file name, and when used for dynamic Web page writing, "$argv [1]" Corresponds to the first parameter of the Que
@ artemis dbrogdon] $ scriptname. ph Darrell BrogdonThe Shell script will output on the display:Hello, Darrell Brogdon! How are you today?[Dbrogdon @ artemis dbrogdon] $When PHP is used as a dynamic web page programming language, it also contains the array "$ argv", but there are some differences with this: when PHP is used as the Shell scripting language, "$ ar
Script This article originates from: http://phpuser.com Author: y10k translation (2002-10-15-06:02:00) --English Original: Darrell Brogdon, published in Http://www.phpbuilder.com/columns/darrell20000319.php3) Many people may have wanted to use PHP to write some of the regular mail, such as the program, but there is no way to execute PHP on a regular basis; when I went to Phpbuilder, I found this article, so I want to give you a translation (at the same time make some changes), I hope to be usef
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