A detailed description of Linux expect usageI. OverviewThrough the shell we can achieve simple control flow functions, such as: cycle, judgment and so on. But for situations where interaction needs to be done manually, we may sometimes need to
Expect everywhere.
The first time I saw expect this command was the first time I was in full volume that's one of the company's cows. A set of automatic deployment, MD5, release of the full online tool written by the shell script, when it's okay,
I've learned some shells before, but not very deep, and the time to write code is not much. Shortly before the shell was more thin, leader assigned a task to write a script with the shell to upload the Redis source tarball from one server to another
Recent project requirements, need to write some shell script interaction, the pipeline is not enough time, expect can be very good to implement the interaction between the script, search for information, found that many articles on the Web are
Expect is a tool built on TCL to automate tasks that require interaction.Because expect is TCL-based, you need to have TCL installed in your systemHow to check?[Email protected] ~]# Whereis tclTcl:/usr/lib/tcl8.4/usr/share/tcl8.4If you do not see
Expect is a software tool for automated control and testing in UNIX systems, made by Don Libes, as an extension of the TCL scripting language, applied in interactive software such as TELNET,FTP,PASSWD,FSCK,RLOGIN,TIP,SSH, etc.Yum Install-y
1 overviewExpect, developed by Don Libes based on the TCL (Tool Command Language) language, is mainly used for automating interactive operation scenarios, using expect to process interactive commands, such as SSH logins, FTP logins, and so on in a
Original address: http://www.nginx.cn/1934.htmlWhere the shell script needs to interact with the here document is the implementation, but some commands require the user to manually go on the interaction such as passwd, SCPIt is very painful to
Expect is a tool for dealing with interactions, usually for scenarios where you need to enter data manually, and you can use expect in your scripts to automate. installation
First check to see if there are any installed expect in the system.
#
usage1. [#!/usr/bin/expect]This line tells the code in the operating system script to use that Shell to execute. The expect here is actually a kind of thing with bash under Linux and cmd under Windows.Note: This line is required on the first line of
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