Shell script code that counts CPU memory usage _linux shell

Copy Code code as follows: #!/bin/sh Clear while ((1>0)) Todo net=$ (NETSTAT-ANP | grep 1000 | grep EST | wc-l) prc=$ (ps aux | grep thread1 | grep-v grep | grep-v Screen | awk ' {print ' CPU: "$"%, MEM: "$"%, RSS: "$6/1024" M, VSZ: "$5/102

Implement Android automated test deployment and run shell script sharing _linux Shell

My configuration is the Linux, android4.2.2 SDK. The implementation details are in the code comments, and the variable name and echo content are part of the description. The main process is: 1. The simulator that detects whether the port is

Kill the shell script code for a particular process _linux shell

1. Methods of primitive violence Copy Code code as follows: mylinux:/home/zhanhailiang/public_html # Killall Nginx 2, gentle point of approachFinds the PID for the specified process and kill|kill-usr1 it off Copy Code code as

A shell script that automatically logs on to multiple servers with expect _linux shell

Copy Code code as follows: #!/usr/bin/expect-f Set IPAddress [lindex $ARGV 0] Set passwd [lindex $argv 1] Set Timeout 30 Spawn ssh root@ $ipaddress #expect "Yes/no" #send "YESR" Expect "Password:" Send "$PASSWDR" Expect "]*" Send

The meaning of 2>&1 in the Linux shell _linux Shell

The meaning of "2>&1" in the Linux shell Script: nohup/mnt/nand3/h2000g >/dev/null 2>&1 & For & 1 It is more accurate to say that the file descriptor is 1, and 1 generally represents stdout_fileno, which is actually a dup2 (2) call. He standard

Linux Server Security Hardening shell script code _linux Shell

Copy Code code as follows: #!/bin/sh # Desc:setup Linux system security # AUTHOR:CORALZD # Powered by www.freebsdsystem.org # version 0.1.2 written by 2011.05.03 #account Setup Passwd-l XFS Passwd-l News Passwd-l NSCD Passwd-l Dbus

6 ways to determine if a string is a number in the shell share the _linux shell

This article mainly introduces the "shell judge string is a number", mainly related to the shell to determine whether the string is a digital content, for the shell to determine whether the number of figures interested students can refer to. #!

function return value exceeds problem in shell _linux shell

1. Preface Almost six months did not write a blog, deserted for a long time, the work of the chores too much, their own more and more lazy. In order to spur their own growth, or adhere to write a blog, record their growth. 2. Introduction to Shell

Shell script reads Standard INI config file demo_linux shell

ini

INI DEMO Copy Code code as follows: [Testftp] host=127.0.0.1 Name=my Pass=mylove Type=ftp [Testssh] host=127.0.0.1 Name=my Pass=mylove Type=ssh [end] Shell script: Copy Code code as

Shell common operator Summary _linux shell

First, the arithmetic operation Copy Code code as follows: +  -  *    /    % second, the relationship operation Copy Code code as follows: >= Third, the test operation Testing command: Test [] [[]] [(

Shell scripts traverse a date range instance _linux shell

If you're dealing with a shell script and it's a common thing to traverse a time range, share it with you today: Copy Code code as follows: #!/usr/bin/env Bash Date1= "$" Date2= "$" echo "Date1: $date 1"echo "Date2: $date 2"

Using Wscript.Shell object to hide the implementation code of the CMD command-line run box _vbs

1. Wscript.Shell (Windows Script Host Runtime Library) is an object, and the corresponding file is C:\WINDOWS\system32\ Wshom.ocx,wscript.shell is a component that the server system will use. Shell is the meaning of "shell", this object can perform

Shell script implementation turns off redundant TTY terminals _linux shell

Today to optimize the company's new deployment servers, found that the TTY terminal has 6, in order to save a bit of memory, decided to leave only a TTY terminal, the others are off, but CENTOS6 and centos5 terminal closure method completely changed,

Shell script implements bulk replacement file content _linux Shell

Today colleagues found that the internal server's hard disk space is not enough, there are many backups, I can not delete, and found a 320g hard disk mounted, want to later the shell script backup to the new hard disk, to make room for the old hard

Shell script sharing for server information (Ubuntu, CentOS test pass) _linux Shell

This script has been tested on the Ubuntu and CentOS versions, and the script is as follows: Copy Code code as follows: #!/bin/bash Line= ' =========== ' #linux发行版名称if [[-f/usr/bin/lsb_release]]; Thenos=$ (/usr/bin/lsb_release-a

Shell scripts traverse directories and bulk modify file encoding _linux Shell

When porting JSP pages on Windows to a Linux environment, it is too slow to find a transform encoding and modifying the default encoding type, write this script to attempt file traversal ~ Long time no write, Rusty. Copy Code code as

Shell script implementation to prevent foreign IP access server _linux shell

Customer requirements, do not want to allow foreign IP to access the server, would have to let the computer room in the upper route to solve, but those people do not bird you!!! ~~~~In this case, you can only use iptables to solve the ~~~~~~~~~About

Implement shell terminal code sharing (user login to implement system commands) _linux Shell

Copy Code code as follows: #include "apue.h" int userlogin (struct passwd); int main (){int ret,i=0;Long RET_CWD;struct passwd *pw;Char buf[128],hostname[16],usercwd[128];Char *ptmp1; do{ret = Userlogin (&PW);}while (ret!= 1); GetChar

Shell script implementation Gets a snapshot of a Web page and generates thumbnails _linux shell

Getting a snapshot of a Web page and generating thumbnails can be done in two steps: 1, get a snapshot of the Web page 2. Generate thumbnail image Get a snapshot of a Web page Here we use PHANTOMJS to achieve. For detailed usage of PHANTOMJS,

Shell script Implementation installs Zookeeper_linux shell automatically

A: This script runs the machine, the Linux RHEL6B,c,d,... : To be installed zookeeper cluster machine, Linux RHEL6 First, on the machine A that runs the script, determine if SSH can be logged in without a password to the machine b,c,d to install ZK,

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