Shell

1. Install SSH, install Needless to say, always click Next 2. Click SSH Secure Shell Client and click on Quick connect above. Host: IP address of the connected Linux (on Linux, log on as root, ifconfig view IP address as shown below) ） User:

[Zxw@host1 ~]$ nl shscp/dump_backup_my.sh1 #!/bin/bash2 #dump MySQL data once per day, the reserve last 7 days data.3 #zhao Xiaowei4 #2014.08.275 Path=/bin:/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin:~/bin6 Export PATH7 dir=

Use expect to implement automatic login script, there are many online, but there is no clear explanation, beginners are generally copied, collection. But why to write this but do not know it. This article uses a shortest example to illustrate the

Today I wrote a shell script that counts the number of source lines in a directory, as follows: #!/bin/bash Find. -Name *. Java > Srcfilespathname Count = $ (wc-l srcfilespathname) # Record the number of source files echo "Number of source

The Until loop and the while loop mean exactly the opposite, while loops indicate that when the conditional expression is true, the loop is continued, and the conditional expression jumps out of the loop when it is false; The until loop indicates

Both $* and $@ variables provide fast access to all parameters, both of which can store all command-line arguments in a single variable. The $* variable saves all parameters provided on the command line as a single word and is treated as a single

http://www.51testing.com/?uid-45739-action-viewspace-itemid-185211 JoinSimilar to the Join method in db, there is also a left join right join INNER JOIN, etc.Specifies the way the join is specified by the parameter-A.-A1 represents a row that

Shell judge file, directory exists or have permissions #!/bin/sh mypath= "/var/log/httpd/" myfile= "/var/log/httpd/access.log" #这里的-x parameter judgment $ Whether the MyPath exists and has executable permissions if [!-X "$myPath"]; Then mkdir

The time display command under Data Command Linux, not the Times command, which is the timing command for the commands: Man date ...%m Month (01..12)%m minute (00..59)%n a newline%N nanoseconds (000000000..999999999)%p locale ' s equivalent of

2017-10-04 Add background account: Suse10, Huawei Veneer, the first four methods are small white in the actual Linux environment test results, may be the difference between Linux version, and not all scenarios are compatible ... Another small white 2

For example, the script name is called test.sh Three: 1 2 3 is as follows ./test.sh 1 2 3 After running test.sh 1 2 3 $* is "1 2 3" (enclosed in quotes) $@ is "1" "2" "3" (wrapped separately) $ #为3 (number of parameters) Case 2:

#! /bin/bash tomcat_home=/usr/local/tomcat6 shutdown= $tomcat _home/bin/shutdown.sh starttomcat= $tomcat _home/bin/startup.sh echo "Off $tomcat_home" $SHUTDOWN ps-ef |grep Tomcat |grep $tomcat _home |grep-v ' grep ' |awk ' {print $} ' | Xargs kill-9

#!/bin/bash destmailslist= ("xxx@xxx.com"); Build_dir=g3_asic_yocto Log_file= "G3_asic_dailybuild.txt" Tail_file= "./tail.txt" #CurTime =$ (date "+%y%m%d") daytimetag=$ (date "+%y%m%d") montimetag=$ (date "+%y%m") yesttag=$ (date-d ' 3 days ago ' +

1.1 HBase Command mode The HBase Shell command provides a TAB key completion instruction. $ hbase Shell After entering shell command mode, you can use the HBase shell command to manipulate the data. Convert an hbase log date ' 08/08/16 20:56:29 '

Let's take a look at some of the basic operations commands of the HBase shell, and I've listed several common hbase shell commands, as follows: Name Command-expression Create a table Create ' table name ', ' column

The script file name is unzip-batch.sh# bulk unzip the compressed file, unzip the file to the specified directory#!/bin/bashFor zipfilenamefull in ' ls./*.zip 'Do#echo "$zipfilename"Zipfilename= ' basename $zipfilenamefull 'filename=$ (basename

first, built-in variables 1. $BASH The path to the bash's binary program file (the path to the script interpreter) $ vim test.sh Enter the code: #!/bin/bash Echo $BASH To run the code: $ bash test.sh 2. $FUNCNAME The name of the current

1, #. /bin/sh Opening 2. Variables: (1) Definition: variable name = string. Note: = no spaces around; name= "Hello World" for which a string with spaces is assigned; (2) Citation: Use $nametest, ${name}test. 3. Wildcard characters: (1) * symbol:

This sort looks more difficult than bubbling selection, inserting, and logically complicated. Intuitively, I know this is not simple, a little afraid. There is no way to give yourself a hint of psychology, be sure to read the 8 basic sorting

The most used date format processing method in Shell programming. #!/usr/bin/env bash #输出当前日期 : Fri Jul 7 09:07:47 CST echo ' Date ' #格式化日期 yyyy-mm-dd echo ' date ' + %y-%m-%d "' #2017 -07-07 echo ' Date" +%f "' #2017 -07-07 echo