Indeed, thanks to this flexibility, tcl has been used in everything from cisco routers and tivo set top boxes, to aols web servers, to the nbc television networks control center see the. Tcl fundamentals 1 this chapter describes the basic syntax rules for the tcl scripting language. Tcl scripting for cisco ios pages 251 300 text version. Jan 04, 2012 this video shows how to use tcl scripting shell to ping multiple network interfaces in a cisco router environment. The video describes the printing and setting variables in tcl. For this feature to work, you must be running the following. Oct, 2012 this lesson teaches you how tcl scripting is utilized in cisco routers. Programming for cisco ios with tcl scripting programming language. Jun, 2010 this script tells how to diagnostic router interface using tcl script. Tcl scripts for cisco ios penetration testing github.
John ousterhout of the university of california, berkeley, designed it. Tcl pronounced tickle is a scripting language that increases flexibility of cli commands. Intended for scripting, rapid prototyping, embedding into applications, creation of guis tcltk. From the menu bar, select language and navigate to t and then click on tcl. The cisco ios tcl shell was designed to allow customers to run tcl commands directly from the cisco ios cli prompt. Heres some documentation on expect windows platform version, but its mostly the same on nix platforms as well. Jul 23, 2018 cisco ios scripting with tcl configuration guide, cisco ios xe fuji 16. The cisco ios xe scripting with tcl feature provides the ability to run tool command language tcl version 8.
Tcl casts everything into the mold of a command, even programming constructs like variable assignment and procedure definition. This video tutorial is on the tool command language tcl shell and how you can use the tcl shell to automate your common everyday tasks on. Whenever a task is created on social miner via rest api, i can successfully query its status via xmpp or rest. Authors take a step by step approach, providing a reference to the tcl language from chapter 1 through chapter 2. Simple variables in tcl procedures arrays if command switch command files selection from tcl scripting for cisco ios book. In todays post i will briefly introduce with a simple example how tcl scripting language can be used with the cisco ios.
Tcl supports multiple programming paradigms, including objectoriented. This script tells how to diagnostic router interface using tcl script. Ousterhout of the university of california, berkeley, is a dynamic programming or scripting language, an interpreter, and a c library. You can visit the download page for the different activetcl versions here. As a final comment, this book is a good starting point for a novice programmer that needs to interact with a cisco device but it can easily be replaced by cisco s documentation on eem and a tcl. The origin of tcl tcl scripting for cisco ios book. The cisco software feature documentation in this configuration guide often includes information about features that are shared across. Tcl scripting for cisco ios networking technology 1, blair. The tcl programming language was created in the spring of 1988 by john ousterhout while working at the university of california, berkeley. Tclscript ping test on cisco routers networking lab. The best way to meet this challenge is to automate mundane or. An introduction to tcl scripting for cisco ios devices. Cisco ios scripting with tcl configuration guide cisco ios xe.
Expect utilizes the tcl language, and all of its commands as well as some of its own. These powerful tools can be leveraged when selection from tcl scripting for cisco ios book. Tcl for classbased qos mib indexes classbased qos mib is a very complex data structure with numerous crossindexes, making it very hard to find the exact snmp variable that should be monitored with an eem applet for example, the bit. It was designed with the goal of being very simple but powerful. Download tcl scripting for cisco ios pdf ebook with isbn 10 1587059452, isbn 9781587059452 in english with 310 pages. Cisco ios scripting with tcl configuration guide cisco. This lesson teaches you how tcl scripting is utilized in cisco routers. It is a combination of a scripting language and its own interpreter that gets embedded to the application, we develop with it. Introduction embedded event manager eem along with tool command language tcl and applets enable you to customize the operation of the ios device. This video shows how to use tcl scripting shell to ping multiple network interfaces in a cisco router environment.
Apr 20, 2016 cisco ios scripting with tcl configuration guide. He has almost 22 years of experience with designing, implementing, and maintaining networks that have included nearly all networking technologies. Jul 14, 2017 the cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. Cisco nexus 3600 nxos programmability guide, release 9. Cisco ios scripting with tcl cisco 871 example 05 mar 2012. After reading this youll probably be able to start writing simple tcl scripts on your own. Tcl as a single command language in all eda tool flows ensures that a designer. Tcl scripting for cisco ios networking technology 1. The comments in the script should be explanatory enough. Contains the operating system version, byte order, hardware, and operating system information example contents and usage. On the other hand, tk is a cross platform widget toolkit used for building gui in many languages. Downloading and installing tcltk on ms windows duration.
With tcltools you can transform any cisco ios hardware into a pivoting station. Download it once and read it on your kindle device, pc, phones or tablets. In this book, three cisco experts show you how to use tcl scripting for cisco ios devices to do just that. So what you know in tcl, you essentially can port over to expect scripts. You can use tcl to extract certain values in the output of a show command, perform switch configurations, run cisco nxos commands in a loop, or define embedded event manager eem policies in a script. Streamline cisco network administration and save time with tcl scripting cisco networking professionals are under relentless pressure to accomplish more, faster, and with fewer resources. Tcl was designed from the outset as a flexible language with a small core, that could be adapted in ways the original authors couldnt have foreseen. This page provides a quick overview of the main features of tcl. The cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. Basically, the script will telnet to a list of devices specified by ip address, execute the snmp configuration, and then exit the session. Tcl scripting for cisco ios networking technology pdf download. Use features like bookmarks, note taking and highlighting while reading. Nothing wrong with that and i have used shell scripts a lot when i was a unix admin but for networking most of what i have seen.
Get your kindle here, or download a free kindle reading app. Discovered during cisco ccnp course, tcl originally from tool command language is a scripting language created by john ousterhout and introduced from ios version 12. I want to using tcl script on mgcp gateway as autoattendant and have file its cisco. This book shows how to use the tcl scripting language to. Cisco ios scripting with tcl command reference cisco. Oct, 2012 programming for cisco ios with tcl scripting programming language. Tcl and cisco ios software using tcl scripts in the network tool command language tcl, invented in the late 1980s by john k. Tcl is the defacto standard embedded command language for electronic design automation eda and computeraided design cad applications. Programming for cisco ios with tcl scripting programming. Chapter 2 tcl interpreter and language basics 11 simple variables in tcl 12. Finding feature information, page 1 prerequisites for cisco ios scripting with tcl, page 1. Cisco ios scripting with tcl configuration guide, cisco.
It describes the basic mechanisms used by the tcl interpreter. Tcl scripting for cisco ios pages 151 200 text version. Tcl interpreter and language basics this chapter covers the following topics. Cisco ios scripting with tcl cisco 871 example remote. Tcl is a scripting language created by john ousterhout, founder and chairman of electric cloud, and a professor at stanford university. Cisco ios scripting with tcl configuration guide, cisco ios xe fuji 16. You can use tcl to extract certain values in the output of a show command, perform switch configurations, run cisco nxos commands in a loop, or define embedded event manager eem policies in. All the eda tool flows from synopsys, cadence and mentor graphics use tcl as the primary scripting interface for their flows. Jul 17, 2018 tcl scripts for cisco ios penetration testing. Shell scripting is quite limited in what it can do when compared to a more general purpose scripting language such as perl or python. Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and. The last chapter covers the issues of security in tcl scripting. Once created, the task is sent to an available agent on finesse.
Get unlimited access to books, videos, and live training. Expect will make your life a lot easier in cases like this. It is a scripting language that aims at providing the ability for applications to communicate with each other. Tcl scripting for cisco ios networking technology blair, ray on. The title tcl scripting for cisco ios might make you think youll be able to drill the guts out of your router and utilise ios functions unknown to most, but thats not the case. There is no interaction with the tclsh and this example. Pronounced as tickle, tcl is a powerful but easy way to learn. Tcl pronounced tickle or as an initialism is a highlevel, generalpurpose, interpreted, dynamic programming language. Tcl scripting for cisco ios networking technology kindle edition by blair, raymond, durai, arvind, lautmann, john. When you use tcl ivr applications, the gateway needs to know the url where the tcl script can be found, as well as the url of any audio file you want to use. An introduction to tcl scripting for cisco ios devices how. The signed tcl scripts feature introduces security for the tcl scripts. Jun 05, 2018 the video describes the printing and setting variables in tcl.
It was then ported to windows, dos, os2, and mac osx. Interestingly enough, tcl is included within cisco ios as tclsh. Tcl with eem support in ios 5 using tcl scripts in the network 8 troubleshooting problems 8 monitoring the network 8 adding intelligence to cisco ios protocols 9 summary 9 references 9. Nothing wrong with that and i have used shell scripts a lot when i was a unix admin but for networking most of what i have seen in terms of script languages has been tcl, perl and python. Tcl is a general purpose multiparadigm system programming language. The best way to meet this challenge is to automate mundane or repetitive tasks wherever possible. For further details, see the prerequisites for signed tcl scripts. Cisco ios scripting with tcl the cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. Tcl script for router interface diagnostic youtube. Use features like bookmarks, note taking and highlighting while reading tcl scripting for cisco ios networking technology. Pdf tcl scripting for cisco ios networking technology. Youll learn easy techniques for creating, using, and modifying tcl scripts that run directly on cisco network devices from the cisco ios command line. Originally born out of frustration, according to the author, with programmers devising their own languages intended to be embedded into applications, tcl gained acceptance on its own. Using expect scripting language to automate cisco configuration.
Detailed steps about script signing and distribution present an excellent guide. The cisco ios tcl shell is now standard on many cisco. Jun 06, 2019 tcl scripting for cisco ios networking technology pdf download is the networking cloud computing tutorial pdf published by cisco press, 2010, the author is arvind durai, john lautmann, raymond blair. Dec, 2008 discovered during cisco ccnp course, tcl originally from tool command language is a scripting language created by john ousterhout and introduced from ios version 12.
410 966 1328 885 682 1085 277 1585 1367 284 931 1394 1550 1266 1608 278 193 594 879 528 1113 466 670 369 590 1168 295 1222 230 898 399 1367 1139 1083 332 586 1309 403 530 1281 84 529 658 339 605 1025 576