Shell

Android4.2 Source Android-17\com\android\commands Directory is more than the previous version of a settings command to view the Settingscmd.java file, at the end of the command to help information:private static void Printusage ()

First edition:#!/bin/Bashuser="root"DATABASE="test" TABLE="user"-u $USER $DATABASE--html--default-character-set= UTF8 /tmp/-u $USER $DATABASE--html--default-character-set=utf8 >/tmp/c Heck.htmlSecond Edition:#!/bin/Bashuser="root"DATABASE="test"

Shell bulk Compress pictures within specified folder and subfoldersThe user uploads the picture, generally has not been compressed, causes the space to waste. Therefore, you need to write a program to find the folder and subfolders of the picture

The original link is: http://blog.sina.com.cn/s/blog_963453200102uya7.html& placed after the startup parameter to set this process as a background processBy default, the process is the foreground process, then the shell is occupied, we can not do

Cat > Sendmymail.sh#!/bin/bash/usr/sbin/sendmail-t from:mail testing to : [email protected]Cc: [email protected]BCC: [email protected]Subject:mail Testing----------------------------------                                This is the mail content ...--

Escape: a backslash (\) is placed before a character that needs to be escaped, indicating that the character is to be treated as a normal character.The escape character is occasionally used when using sed awkFor example, I insert a string from line 8

Organized from: http://blog.chinaunix.net/uid-22101889-id-3167454.htmlNote: Please use it carefully, so far, I haven't found a way to change it back.1. QuestionsFirst, many large companies of the server are not allowed to log in directly, but

Shell Common knowledge points---------------------------------------SED usage http://www.cnblogs.com/edwardlost/archive/2010/09/17/1829145.htmlSED is a non-interactive editor. It does not modify the file unless you use Shell redirection to save the

about SEDSED is a lightweight flow editor, shorthand for stream editor. Because SED is an edit file in the behavior unit, it is also called the line editor. It automates editing by eliminating the need to edit data directly.How SED works:Read the

Http://baike.baidu.com/subview/849/15831672.htmHttp://en.wikipedia.org/wiki/Shell_ (computing)Common commandsCat file name output file content to basic output (screen or add >filename to another file) CB format source code chmod//change mode, change

The recent use of a partition on the line was too fast, and Nagios did not turn on the monitoring of partition usage, taking a few minutes to temporarily write a script to use first. The usage is relatively simple, directly on the code:Note: The

1 Shell Variable BasicsThe shell variable is a very "weak" variable, by default a variable holds a string, and the shell does not care what the string means. So for mathematical operations, you must use some commands such as let, declare, expr,

I've seen a few books on Shell programming and Linux commands, and this one is particularly impressive, though it's still an introductory book, but I think it's a little bit more detailed and broader than I've ever seen before. Today just read, but

Writing a very simple script, the results are very strange.1 #!/bin/bash 2 3 path= $HOME/vlc_transplant4 4 5rm -F $PATH/ VLC6Ln -S $PATH/bin/vlc-static $PATH /vlcExecution Result:[Email protected]:~/vlc_transplant4$./update. SH . /update. SH 5

wrote a Shell version Mini monitoring scripts, purely to share with you the study , be interested in learning Shell can look down. (*_*)Total 3 a script file service.sh, daemon.sh, tcp.shImplemented a number of basic functions: port monitoring,

#!/bin/bash #-----------------------------------------------------------------------# Script name:inf_impobj.sh# purpose:to batch export mappings or workflows to XML files # Created by:indifferent_to# date:2014-11-26 #------------- ------------------

FS ShellThe call file system (FS) shell command should use the form Bin/hadoop FS . All of the FS shell commands use URI paths as parameters. The URI format is Scheme://authority/path. For the HDFs file system, Scheme is HDFS, to the local file

1. Display up to 10 processes consuming memory/cpuPS aux | Sort-nk +4 | TailPS aux | Sort-nk +3 | Tail2. View the number of concurrent requests for Apache and its TCP connection statusNetstat-n | awk '/^tcp/{++s[$NF]} END {for (a in S) print A, s[a]}

While others are demonstrating certain commands, one of the solutions is to record the process at the time of presentation, and the video is of course the most perfect but cost-efficient. Use the script and Scriptrelay commands to record the order

About the return values of functions in Shell, shell return values#! /Bin/shSum (){Echo $($1 + $2 ))Return $($1-$2 ))}Sum $1 $2C =$ (sum $1 $2)Echo $?Echo $ cRun the command:./bashTest 11 1.The running result is:12 -- result of sum $1 $210 -- echo $?