sleep command in shell script

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What you need to know before you learn a shell script

Knowledge before learning shell scripts1) Record command historyThe commands we've knocked on, Linux will be recorded, and presets can record 1000 historical commands. These commands are saved in the. bash_history file in the user's home directory.

Methods to hibernate a process in a shell script (sleep usage) _linux shell

Sometimes a shell script is used to execute a series of programs sequentially. Some programs do not immediately exit after the stop, for example, there is a tomcat hung, even with the kill-9 command has not been an instant to end. So if the shell

Review shell scripts

What is a shell script. First, it is a script and cannot be used as a formal programming language. Because it's running in the shell of Linux, it's called a shell script. To be blunt, a shell script is a collection of commands. For example, I want

The fifth chapter of the Linux command line and Shell script programming Encyclopedia understands the shell

5.11. cat/etc/passwdYou can view each user's own default shell program.2. The default interactive shell starts when the user logs in to a Virtual Console terminal.But there is another default shell is/bin/sh, which acts as the default shell for

Shell script telnet login

  #!/bin/bash( echo "user" sleep 2 echo "passwd" sleep 3 echo "do something in remote device" sleep 3 echo "exit") | telnet IP The above is non-interactive usage. If you need interactive usage, you can use round CT, and then

Shell Base 06 Control script

1. Signal ProcessingLinux uses signals to communicate with processes running in the system.Signal Value Description1 SIGHUP Suspend process2 SIGINT Terminate Process3 Sigquit Stop Process9 SIGKILL Unconditional Termination processSIGTERM terminate

Random Talk about shell scripts

I. about the shellShell, English is shell, the meaning of the shell, as in the computer, there is also a layer of meaning, that is, the shell can be seen as a computer system encapsulation of the shell for the user to use, so the user can manipulate

Python shell command instance analysis

This article describes how to encapsulate shell commands in Python. An example shows how to encapsulate various common shell commands into a class for calling. it is of great practical value, for more information about how to encapsulate shell

Script programming on the graphic desktop in Linux command line and shell script programming

Linux command line and shell script programming Daquan graphic desktop script programming create text menu create menu layout [plain] #! /Bin/bashclear # clear screen echo-e & quot; \ t \ tMenu & quot; echo-e & quot; 1. \ tDisplaydiskspace & quot;

Python shell command instance analysis

Python shell command instance analysis This example describes how to encapsulate shell commands in Python. Share it with you for your reference. The specific implementation method is as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1

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