Shell

Export data from the DB2 database using a shell script based on the user name, database name, and password entered(1) The a.sh script is as follows #!/usr/bin/"" "" " "" EXPORT To/home/practice/data/a.del of del select * from a "(2) Connect to

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 #!/bin/sh## java envexport JAVA_HOME=/usr/java/jdk1.7.0_79export JRE_HOME=$JAVA_HOME/jre## service name##

Regularly back up each server's shake data, to the FTP server, pay attention to the active mode and the passive mode difference#!/bin/bash# active FTP is beneficial to server, client iptables shutdown, client needs to execute Passsiveh after

Introduction:1. If you want to know what the/home partition usage is for the tens of thousands of servers you are managing.    2. What do you do if you want to add the same scheduled task to the tens of thousands of servers you manage? 3. What if

2.2.6.1, Case statements(1) The case statement in the shell acts in the same way as the switch case statement in the C language, with a different format(2) The case statement in the shell is inherently free of break and does not require a break,

Thinking of solving problemsThe file Shu is the following.220 34 50 70553 556 32 211 1 14) 98 33The file Jian is the following.1082Want to get the result is the following.210 24 40 60545 548 24 131 1 12) 96 31Use awk to get the results you

1.11.1 command SubstitutionUse the reverse quotation mark "'" (on the key of the wavy line) or $ () in Linux to perform command substitution. Generally more intuitive and more convenient to knock in $ (). [Email protected] tmp]# echo Can You tell me

1. What is a shell?The shell is the interface between the user and the Linux operating system.There are multiple shells in Linux, with bash being used by default.Classification of 2.shell(1) BashThe bash Shell is a free version of the Bourne shell,

Simple to use:Awk: Performs an operation on a single line of the file in solitude.Awk-f: ' {print $1,$4} ': Use ': ' to split the line and print the first fourth field of the line.Detailed Description:awk Command IntroductionThe most basic function

SED command basic usageSED is a non-interactive text editor that edits text files and standard input, which can be input from keyboard input, file redirection, strings, variables, text from pipelines, and so on.Sed reads data from one line of text

While loopSuitable for environments where the proposition is true when the loop is executedWhen a proposition is true, it enters a loop, and a proposition is a false exit loop.Or when the condition is met, it goes into the loop.Syntax format:While

1. Analog Linnux Login Shell#/bin/bashecho-n "Login:" Read nameecho-n "password:" Read passwdif [$name = "CHT"-a $passwd = "abc"];thenecho "The Hos T and password is right! " else echo "Input is error!" Fi2. Compare two number sizes#/bin/bashecho

Shell condition judgmentIf List ThenDo something hereElif List ThenDo another thing hereElseDo something else hereFiEX1:#!/bin/shSystem= ' uname-s ' #获取操作系统类型, I'm local Linuxif [$SYSTEM = "Linux"]; Then #如果是linux的话打印linux字符串echo "Linux"elif

The concept and characteristics of regular expressions A regular expression is a logical formula for a string operation, which is to make a "rule string" with a predefined set of characters and a combination of those specific characters.This

Linux terminal is divided into physical terminal, pseudo terminal, serial terminal, virtual terminalPhysical Terminal:/dev/consolePseudo terminal (terminal under Remote terminal graphics):/dev/pts/# (digital)Virtual Terminal:/dev/tty#Serial Terminal:

Use the key file. This assumes that host a (192.168.100.3) is used to obtain a file for Host B (192.168.100.4). Execute the following command on host A to generate the pairing key: ssh-keygen-t RSA encounters a prompt to enter by default, and the

1 Bash Information profile for the TTY login interface:/etc/issueLogon interface information for Telnet telnet:/etc/issue.net2/ETC/MOTD the contents of this file can be seen by all users including the root user when logging in, so when there is

Http://blogs.interfacett.com/how-to-run-the-exchange-management-shell-ems-in-powershellConnect to Exchange servers using remote PowerShell1. Can use the following versions of Windows: Windows P style=

The usual way to write shell scripts is to use $1,$2 .... This way to receive parameters, however, this method of receiving parameters is not only easy to forget and not easy to understand and maintain. The commands that are commonly used by Linux

Reprint: http://www.linuxawk.com/jiaocheng/83.html6. printf functionsWhen you print the output, you may need to specify the number of spaces between the fields to arrange the columns neatly. Using tabs in the Print function does not guarantee the