Shell

MysqlMysql-h${hostname}-p${port}-u${username}-p${password}-E "SQL statement"-hlocalhost-uroot-proot customer-e "select * FROM Customer "> 1.txtReference article:Http://www.2cto.com/database/201410/343557.htmlShell Programming--eofhttp://blog.163.com/

ADB Shell--helpDescription: More than 4.4 devices can be used to record video, without the need for root access, extremely convenient.E:\WORKSPACE\TAOPARKING\SCRIPT>ADB Shell Screenrecord--helpUsage:screenrecord [Options] Records The device ' s

MySQL partition experimentBrief:I. Partitioning by partition typeII. Administrative Divisionexamples of partitions and non-partitioned tablesfirst, establish the partition to hash partition for example(1), non-linear hash partition1. Test table

Idea: After Nginx starts, there will be a nginx.pid file in the specified location, by judging whether the file exists. Determine if Nginx has been started.#!/bin/bash#this is my first try to test write a shell to control nginx Daemon#History 2015-08

The ":" in the shellActual case: A section of ===> in the HBase script# for releases, add HBase & WebApps to CLASSPATH# Webapps must come first else it messes up Jettyif [-D "$HBASE _home/hbase-webapps"]; ThenClasspath=${classpath}: $HBASE _homefiif

Shell scripts are executed in various ways (source./*.sh,. The difference between./*.sh,./*.sh)Original source: http://blog.csdn.net/dance_rise/article/details/8573560Conclusion One: The/*.sh is executed in the same way as sh./*.sh or bash./*.sh,

The SED command usage for Shell Scripting Learning notesBasic usage of SEDSed:stream EditorLine EditorSED: Pattern space Stores matched text content in pattern spaceBy default, the original file is not edited, only the data in the pattern space is

The expr command takes an arithmetic expression as a parameter, usually in the following form:expr [number] [operator] [number]Because the shell stores variables as characters, the user must ensure that the operand that participates in the

#!/bin/bash## chkconfig:- the the# Description:tomcat Start/stop/status script#location of Java_home (bin files) export Java_home=/usr/java/jdk1.7. 0_80#add Java binary files to pathexport PATH= $JAVA _home/bin: $PATH #catalina_home is the location

The variables are divided into 2 types: 1 system Variable 2: User-defined variableenv Display system variable set display system variables and user-defined variablesCustom variable rule: a=1 = number cannot have spaces on either sideCan only consist

1. Write a shell procedure named Xunhuan (with a looping statement), as shown in the results of the operation.0102103210432105432106543210765432108765432102. Write a shell process called Cala, which functions as a small calculator that allows you to

ProcessPreface : A process refers to an instance of a program in execution . The new process consists of Fork () with the Execve () when the system call starts , and then execute , know that they have issued exit () until the system calls

Case ... Esac is similar to the switch ... case statement in other languages, and is a multi-branch selection structure.Syntax for Case statements Case inch mode 1) Command1 command2 command3 ; Mode 2) Command1 command2 command3

Escape character#!/bin/Basha=tenecho"Value of A is $a \ n"Replace the escape character with the-e representation, which is not escaped by defaultCommand substitutionThe syntax for command substitution, note is the inverse quotation mark, not the

Unlike a compiled language, shell scripting is an interpreted language.When executing such a program, The interpreter (interpreter) needs to read the source code that we wrote and convert it to the target (object), which is then run by the

Recently engaged in a shell script to start the jar file with a close jar file. I've got a sore egg. It's finally done this evening.In other words, little brother's Linux is just getting started, after all the information has finally been checked.

Method One: Load OD, using ESP law:After the hardware access breakpoint, run four times, and run to fly, then we run three times, to see a lot of pop here:Retn returned and arrived at Oep: Method Two: Direct single-step tracking, tracking

Linux shell reads the file line by line,Read File lines For Command replacement Code block redirection While Pipeline operator Code block redirection For IFS=$'\n'for line in `ls -l`do (( count++ ))doneecho $count Note:

Difference between reverse quotation marks (') and $ () in Shell Echo`Echo\ $ Hostname'//Reverse quotation marksecho $(echo \$HOSTNAME) //$() Someone asked today: Echo 'echo \\\\\\ W' echo $ (echo \\\\\\\ w) Why is

Difference between reverse quotation marks (') and $ () in Shell, shell quotation marks Someone asked today: Echo 'echo \\\\\\ W' echo $ (echo \\\\\\\ w) Why is the output different? This leads to another problem: is there a difference between