Bash Expect Calling an expect script in a loop of a bash scrip – Unix

Calling an expect script in a loop of a bash scrip. Ask Question 4. 1. I am trying to loop a list of sites through an expect script. The loop will take my list and read it line by line, change directories to the folder of the site name, then pass the site name to an expect script. Bash Script:

Jun 13, 2006 · your syntax, with one expect block, gave it a « choice of actions », but told it to only perform the choice once. for it to expect multiple things and to react multiple times, you need to give it multiple « expect…

Feb 10, 2018 · Also run you Bash script with sh -x yourscript to see what Bash internals are. Somehow I have the idea that you should expect « password\r » or « password\r\n » Once you have exp_internal 1 you’ll see exactly what your server returns and how Expect matches that or not.

Single quotes have no special meaning in expect. Use double quotes. Additionally, use expect eof instead of interact, since there’s nothing to actually interact with once you enter the password — you’re just waiting for the command to complete.

I trying to run an expect script within bash and get the results of a variable called RESULT. I Have tried a few things but none of them have worked. I know that the child process (the expect script) in this instance cannot set a variable for the parent. (bash) and the value must be return by the expect script, that is my problem. my script

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Bash script with expect Hey, I am trying to write a small script to remotely login to particular server, perform a few commands (in this example ether-wake local machines on the LAN ), and logout.

Expect is a Unix and Linux automation and testing tool. It works with interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, ssh, and many others. It uses Unix pseudo terminals to wrap up subprocesses transparently, allowing the automation of arbitrary applications that are

Aug 25, 2008 · Introduction to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.

Basic principles of using tcl-expect scripts Raw. @Satyamjay Yes it is possible to call an expect function using a bash script. You can call it in the format: expect /home/user/my_expect_file.exp arg1 arg2. This comment has been minimized. Sign in to view.

Jun 06, 2016 · SSH Using Expect Automation Scripting In Linux By Passing Password.

Expect, an extension to the Tcl scripting language written by Don Libes, is a program that automates interactions with programs that expose a text terminal interface. Expect, originally written in 1990 for the Unix platform, has since become available also for Microsoft Windows and other systems.

Basics ·

Sep 26, 2014 · Mr. Fox maintained Bash — which serves as a sort of software interpreter for different commands from a user — for five years before handing over the reins to Chet Ramey, a 49-year-old

Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Expect really makes this stuff trivial. Expect is also useful for testing these same applications.

Don Libes’ Expect: A Surprisingly Underappreciated Unix Automation Tool 2016-12-08 – By Robert Elder. In this article, I will attempt to convince you that Expect is an extremely underappreciated tool for automating terminal applications in Unix.. Why do I feel so strongly about this?

The expect command is the heart of the Expect language. expect is a control structure that selects a body-i to execute based on matching the patterns pat-i against the output of the spawned process.

In this bash script we will use expect scripting.Expect is known primarily as an indispensable application for system administrators . We use expect generally in case where input from user is required , for eg. ssh, ftp, telnet, sudo etc.

More than 3 years have passed since last update. れれ?? Qiitaのフォント変わった? さて、今日はexpectを使います。 expectコマンドとは コマンドの返答を識別して次の入力を自動的に行うコマンドー 本当はLinuxのユーザーのパスワードを200

To do this, you use expect on a Linux/UNIX machine to connect to the appliance or closed system, and then complete a task. For example, you could write an expect script that would connect to a Cisco switch and run a series of commands on the switch.

This is a cool program. I can run a TELNET or FTP session to a VAX from Linux, and create an EXPECT script from the session that I can run any time I wish. Nothing beats actually doing it. I logged on to a VAX with FTP, put a file and quit. I copied the man page for EXPECT to a file, then I …

Expect is a freely available software facility/programming language that allows you to automate pretty much any interactive task. Don Libes, who began writing Expect in 1990, puts it more tersely: “Expect [is a] software suite for automating interactive tools.”

bash, expect, pexpect, script, ssh. Post navigation. Previous Post Netcat (nc) Command Tutorial With Examples. Next Post List and Change Kernel Config Variables With Sysctl Command. 2 thoughts on “ Expect Scripting Tutorial With Examples ” Pingback: Basics of Expect Programming Language – clarkw says:

Sep 25, 2016 · Automate SCP file transfer using Expect script in Linux.

This is a bash shell script which you will run to start the entire process. It will prompt for your ssh password and an enable password, and then feed it to the Expect script along with the contents of device_list.txt. I found this more secure then reading the passwords from a file and easier to do in bash than in expect.

A word of caution: If « pkginfo -c product | wc -l » is supposed to return 5 as the result and you are working in bash whose prompt is something like bash2.05 then giving expect « 5 » will succeed even if « wc -l » returned a different number.

Feb 04, 2018 · Download Expect for free. Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Expect is also useful for testing these same applications.


When a script ends with an exit that has no parameter, the exit status of the script is the exit status of the last command executed in the script (previous to the exit). #!/bin/bash COMMAND_1 . . .

I received a « invalid command name « /usr/bin/expect » it seems like the EOF (see above) is being skipped with the conditional expect is ignored. Do I need to keep a …

In BASH can be used SSH with Public key, cssh (Cluster SSH), sshpass, Example: sshpass -p ‘PASSWORD’ ssh [email protected] ‘ls -l /tmp/temp_file.txt’. But examples below are with Expect (for sudo and another commands).

EXPECT 5.31 Expect is a Tcl extension that lets you automate interactions with interactive programs such as Telnet and FTP clients. Start with the main Expect man page.

Aug 02, 2007 · Using bash it does a few ping tests to my own IP and if there is no response it runs the expect script which telnet’s to my router and then reboots it. What i am after is a way of combing these 2 scripts into 1 bash script, or even if i could have 3 « scripts » in 1, instead of having 2-3 separate scripts to do all that i want.

Mar 21, 2006 · Since Expect starts the bash script, the scripts I/O is linked directly to the Expect script. I know this becuase the Expect script reads/responds to the « username: » && « password: » prompts coming from the bash script.

Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Expect is also useful for testing… Expect – Browse Files at Connect

This is Part III in a series on Execute Commands on Multiple Linux or UNIX Servers Simultaneously. The full series is Part I, Part II, and Part III. Adblock detected