Shell

The following parameters for ADB shell AM broadcast are:[-a ][-D ][-t ][-C [-C ] ...][-e|--es ...][--ez ...][-e|--ei ...][-n ][-f ] []For example:ADB shell am broadcast-a com.xxxxx--es key_string "string" --eiint_int 111 --ezkey_boolean

First, Introduction:HBase shell using the process, using the CRT client, the command input can not be deleted has been trapped around me, today finally unbearable, a few degrees Niang, Google, finally have a solution, special share to

30.tee: Reads the standard input and then displays it by the standard output and stores the data in the specified fileExecute this command, test.txt if it already exists, it will be emptied, if it does not exist a new file will be created, end the

The shell script's reference book from the foundation to the advanced can find hundreds of, the beans here for the entire study note integrity, or audacity the most basic grammar review again. The most basic include variables, comparisons, operators,

The tput and printf functions are required to print the progress bar in the shell.# tput Row col cursor moves to row row column Col# tput cols Gets the maximum number of columns in a window# tput lines Get window max running script# echo $LINENO Get

Script comments: in a shell script, a comment followed by the (#) number, used to annotate the script, the comment part is not executed, the comment can be self-contained, or it can be followed by the same line as the command after the script

▲ Shell ScriptShell Script is to use Shell the function of a program written by this program is to use a plain text file that will some Shell Grammar and instruction are written in, with regular expressions, piping commands and data flow redirection,

How to protect a shell program you've writtenTo protect your own shell scripting program, there are many methods, the simplest way there are two: 1, encryption 2, set the expiration time, following the SHC tool as an example description:I. Download

first, how to execute the shell scriptShell scripts are text files, so you can create and edit scripts with any text file editor (such as Vi,emacs, etc.). The name of the shell script file does not have a qualified suffix name, usually without a

#!/bin/sh# desc:setup Linux system security# powered by Www.lvtao.net#account setuppasswd-L XFSPASSWD-L NEWSPASSWD-L NSCDPASSWD-L DBUSPASSWD-L VCSAPASSWD-L GAMESPASSWD-L NOBODYPASSWD-L AVAHIPASSWD-L HALDAEMONPASSWD-L GOPHERPASSWD-L FTPPASSWD-L

The format of the while loop: while expression Do Commandcommand 、、、 Done1. Counter-controlled while loop:Used primarily for the number of data and strings that have been accurately known to be entered.Example:#!/bin/bashint=1 while (($Int. 5 ))

In the bash Shell , $ () and "(anti-quote) are used for command substitution.The so-called command substitution is similar to the variable substitution we learned in the fifth chapter, which is used to reorganize the command line:* Complete the

the meaning of several symbols$#: On behalf of the following parameters "number", the above table as an example of this shows as "4";[email protected]: for "$" "$" "$" "$" "$4" means, each variable is independent (enclosed in double quotation marks);

For example, comparing strings, judging whether the file exists and whether it is readable, etc., usually uses "[]" to represent the condition test.Note: The space here is important. The space to ensure the square brackets. I have wasted a lot of

At the user's point of view, there are two types of shells:log-in Shell:Log in normally via a clientSu-username or Su-l USERNAMENon-logon shell:Su USERNAMECommand window open under graphical terminalShell scripts that are executed automaticallyBash

Transferred from: http://blog.csdn.net/cybertan/article/details/3235722Transferred from: http://blog.sina.com.cn/s/blog_4c451e0e0100giqg.htmlScenario: Use a shell to see if a PHP program running in the background exits abnormallyIf exiting, use the

Linux Shell Script Raiders notesChapter One: Shell start -up basics1. Variables: In bash, the value of each variable is a string. Whenever you assign a value to a variable, there is no quotation mark, and the value is stored as a string. 2,

Linux Shell Script Raiders notesFourth Chapter: Efficient Text Processing1, the IP address of the regular expression: [0-9]{1,3}\. [0-9] {1,3}\. [0-9] {1,3}\. [0-9] {1,3}2, grep usage//recursive retrieval of text in a multilevel directory [[email

Article background:Wrote an article on how to build a personal website on your personal computer.Create a Web site that is entirely up to you (i)But a personal website is built on the PC, and the external computer is not directly accessible to our

Shell IFS readLine. sh, ifsreadline. sh processLine(){line="$@"echo $line} FILE="" if [ "$1" == "" ]; then FILE="/dev/stdin"else FILE="$1" if [ ! -f $FILE ]; then echo "$FILE : does not exists" exit 1 elif [ ! -r $FILE ];