10x Engineer: What? You can do this on Cisco IOS?

Рет қаралды 63,431

Күн бұрын

Wow! You can run these amazing Linux commands on Cisco IOS? And without a Linux shell? Just run these directly on Classic Cisco IOS switches and routers! Use grep, man, head, tail, cat and many other Linux commands directly on Cisco IOS.
More information here: bit.ly/2kwMyYN
You don't need a linux shell or linux virtual machine to use these commands. You can use them directly in classic Cisco IOS!
10x Engineer
Cisco Devnet Associate
CCNP Enterprise
CCNP Security
CCNP Data Center
CCNP Service Provider
CCNP Collaboration
Cisco Certified Devnet Professional
Cisco Certified Network Professional
LPIC 1
LPIC 2
Linux Professional Institute
LX0-103
LX0-104
XK0-004
#linux #cisco #DevNet

Пікірлер: 263

@mdtaylor2274 4 жыл бұрын

There's no place like 127.0.0.1 Great video David and I'll be happy to become a 1x engineer.

@davidbombal 4 жыл бұрын

Love it! Just work towards your goals every day!

@DICEMAN60 4 жыл бұрын

I asked this question myself to a more senior engineer and they called me stupid. Now you just answered the question of, "what Unix commands can you use in iOS?" My intuition was correct and you just confirmed it. Thank you.

@julianbendix7727 4 жыл бұрын

Thank you so much for your effort making those videos. Working as a network engineer for over 3 years and this video just changed the way I work within a couple of minutes!

@adamlicht6614 4 жыл бұрын

Absolutely brilliant. I could thing of about a million things from the last week of work alone where these tips would have came in handy. I can't wait to use them!! Cheers!

@seanlowe5547 4 жыл бұрын

I'm a CCNP and since a couple weeks ago, I started to study in the Cisco Linux Essentials In Network Academy. Now, after watching this videos, I feel that I'm on the right way. Thank you very much David, you ´re the best.

@emmanuelkz4519 4 жыл бұрын

David I passed my CCNA yesterday just because of your lovely videos. I leaned a lot from you during the last couple of months. Thanks for everything💕💕

@JeremysITLab 4 жыл бұрын

Excellent video Mr. Bombal! As a relatively new network engineer I'm going to have to study these things seriously to keep up with the changing world of networking, and your videos are a great help.

@RaymundMyers 4 жыл бұрын

This is another reason to be excited as I continue my journey to my CCNA. THANKS!

@Aehtibarov 4 жыл бұрын

Great, thank you ! I was looking for this series of include exclude commands for long time, now i will use grep!

@sdf1677 4 жыл бұрын

This is so helpful for a beginner like me to work as a Network Analyst. I want to see more of these!

@CravenCoetzee 4 жыл бұрын

Bought pretty much every course of yours on UDEMY as a refresher prior to emigrating to New Zealand. Great video. Looking forward to more.

@davidbombal 4 жыл бұрын

Thank you Craven! Much appreciated. I hope the move to New Zealand is going well.

@ytwiz 4 жыл бұрын

Amazing David! I wish I knew this hidden gem years ago! I can see major benefit in using these hidden Linux cmds in my network automation scripts:)

@XanderPetty 4 жыл бұрын

Nice! What a great follow up for Chuck's video.

@MrAnik001 4 жыл бұрын

Just awesome. This is why I love your videos. Always exceptional from others. Need more videos like this please keep it up, we all are with you.

@kinfernotheking 4 жыл бұрын

This is fascinating. Can’t wait to experiment with these commands

@stellarorbit1341 4 жыл бұрын

I had no idea of this. I think I am going to show my CCNA3 professor this to see if she knows about these. This blew my mind

@johanrobbetze3918 4 жыл бұрын

Thanks for this David. This surely save some time when you have to work with large running config files. I will be following this videos to learn more :D

@NetwrokForGeeks 4 жыл бұрын

Because of this material and uniqueness you are so important for me.thank you so much David

@Pursuitdnb 4 жыл бұрын

Love this video! Great stuff! More videos like this would be great! It would be great if you produced longer and more in depth videos. That would even better. But i do appreciate this. Great work!

@davidbombal 4 жыл бұрын

Thank you! The series covers quite a bit of ground: kzfaq.info/get/bejne/aZeIqKlzmpbTlWw.html

@alreid12345 4 жыл бұрын

Really great interesting video David. Thanks so much and I will be testing a few devices next week.

@usamaali-fk1mx 4 жыл бұрын

Wow you made my day David Sir i am really surprize to see this video i am a begineer in networking field and i am currently pursuing my ccna thanks for this amazing content. :-)

@darkknight9543 4 жыл бұрын

It's great to know more info about Cisco even if it was not related to our ccna study

@johnsonopokujnr.3595 4 жыл бұрын

thank you Mr. Bombal for your continuous encouragement...my CCIE is loading

@martinmokran6324 4 жыл бұрын

very useful video, many thanks David, looking forward to another one!

@anilrouter4959 4 жыл бұрын

Tried the commands worked as shown really very helpful sir

@keithjacob1194 4 жыл бұрын

I always enjoy your videos. Great subjects! 🎸💫🥁

@fnazaro 4 жыл бұрын

Amazing tips David! Thank you !

@islandcapital8410 4 жыл бұрын

Hi I'm from Saudi Arabia and i have ccna exam soon I'm so nervous and yeah probably hard because my English is a bit average and I'm learning a lot of your vlogs it was helping me a lot and benefit all the time thank you so much

@cloudguru3018 4 жыл бұрын

Thank you David for sharing your knowledge and awesome info!

@sonilsharma1296 4 жыл бұрын

Thank you sir I learned something new as I am having start in networking industry it will help me a lot

@techworld3043 4 жыл бұрын

You are the best recently I found your channel this is gold min... Thank for efforts 😍

@ronetteprinsloo5048 4 жыл бұрын

Very helpful video. Looking forward to more

@xprownz 4 жыл бұрын

Awesome video David. How useful grep is!!

@robpalomo 4 жыл бұрын

Thank you david. I been busting my head around this...

@FLRyoutube 4 жыл бұрын

Really cool, videos like this really have their value!

@nasser_omar 4 жыл бұрын

Great thanks to you Mr.David❤❤. The video is amazing, wonderful, and magical. Thanks for sharing your experience.

@davidbombal 4 жыл бұрын

Thank you Nasser! I appreciate the kinds words!

@jonathanmblair 4 жыл бұрын

This is an awesome video! Thank you!

@refaiabdeen5943 4 жыл бұрын

That’s Awesome David!

@rajtheo 4 жыл бұрын

Tks David never knew the wonderful ways you manipulated the output.

@davidbombal 4 жыл бұрын

Glad you learned something from the video Thiaga!

@naingaung7827 4 жыл бұрын

Very useful info Mr.David.

@johnmichaelechavez5979 4 жыл бұрын

Life saver as always. Thank you

@jacquesmahoudeaux9783 4 жыл бұрын

Thank you for those advice :) Great video !

@davidbombal 4 жыл бұрын

Thank you

@seanshuping 4 жыл бұрын

This is wicked cool David. I'm a Linux enthusiast, but often find myself on switches wishing I had my bash arsenal to deal with the quirks of nxos. 🇿🇦 For the win

@davidbombal 4 жыл бұрын

On NXOS you can down into a full blown Linux shell if you want to. See here: bit.ly/2kaCWmq

@parvindersingh777 4 жыл бұрын

I don't know why people are not subscribing such a beautiful channel for network engineering. Beautiful work.

@davidbombal 4 жыл бұрын

Thank you for the kind words!

@jsmolic83 4 жыл бұрын

This is great. Thank you.

@ronetteprinsloo5048 4 жыл бұрын

Thank you David :)

@colinleocanna 4 жыл бұрын

Great vid. Thank you sir.

@zaherer2008 4 жыл бұрын

You are rock star David , thanks deeply

@hamzaben2932 4 жыл бұрын

very helpful, Thanks a lot :)

@eugenmaftei1793 4 жыл бұрын

Thank you David, very helpful, especially when combined with netmiko!

@davidbombal 4 жыл бұрын

Have a look at Genie and PyATS.... they take things to the next level :)

@eugenmaftei1793 4 жыл бұрын

@@davidbombal Agreed! It's just that for a network guy in a Windows based enterprise, to maintain an additional linux dev environment may not be that much fun. At home ... that's a different story! :-)

@karthik.mishra 4 жыл бұрын

Really cool! Now everything can be grep, awk and sed!

@smartbusinessbroker 3 жыл бұрын

so we can used sed and awk too in IOS? That's seriously cool!

@willembont4790 4 жыл бұрын

For me it is more than 8 years in the business..... and only now I know. Better late than never. :) Thanks David. Big Thanks.

@davidbombal 4 жыл бұрын

We are all never too old to learn :)

@diddustube 4 жыл бұрын

Thank you David you're always the best

@davidbombal 4 жыл бұрын

Thank you Eddy

@MrBrooksJr87 4 жыл бұрын

Great content thanks David

@amarsonik7047 4 жыл бұрын

killer knowledge tips !! massive david !!

@wingwing2683 3 жыл бұрын

Thanks a lot!

@Santucci73 4 жыл бұрын

Awesome videos...loving them a lot!!

@davidbombal 4 жыл бұрын

Thank you Brian!

@danykillermuneef Жыл бұрын

Thanks David this is very helpfull

@kylejohnson306 4 жыл бұрын

Amazing video David

@samiramir91samor78 Жыл бұрын

Thank you

@int3rc3ptor007 4 жыл бұрын

Love your content :) You put lot of time & efforts

@davidbombal 4 жыл бұрын

Thank you!

@davidr9099 4 жыл бұрын

Your videos are great, labs and content are super easy to understand ... wanna sin this please !!!!

@ronnyzambrana9933 4 жыл бұрын

Great command pront!!! A++

@gobishanth1733 4 жыл бұрын

it's really impressed...

@petervickers8839 4 жыл бұрын

Some great tips here, thanks. A little rusty on cisco (in the optical world these days), but on asr9ks utility egrep is great. Eg; (if I can recall the exact commend here) --- sh controller phy | utility egrep "Tx.*Rx" - A 5 --- This will filter only the lane powers for a qsfp+ controller, great to cut out the other noise when you just need light levels.

@davidbombal 4 жыл бұрын

Thanks for sharing the tip Peter!

@khaledabtouche4735 4 жыл бұрын

Thank you so much , it's very helpful =)

@davidbombal 4 жыл бұрын

Glad you found the video useful Khaled

@zelaznog73 4 жыл бұрын

Hi David, excellent video, a real eye opener for us that still attached to the old CLI, from which version of IOS these commands are available, I had a lot of old switches still running IOS v 12

@melissadexter5074 4 жыл бұрын

That is awesome!

@refaiabdeen5943 4 жыл бұрын

Cheers Mate!

@terryevans1976 4 жыл бұрын

Awesome! My ten years as a Sysadmin were not wasted LOL

@jazbuh1794 3 жыл бұрын

My ‘oh look at that!’ Moment was when I did show ? And saw pwd in the list. Then saw head and started to try them all.

@codyroche7586 4 жыл бұрын

I'm sure it wasn't added due to time constraints, but one big benefit with Linux commands is you can use regular expressions now, not just basic patterns. RegEx could be a whole series of videos on their own though! You could see a bit of the benefit with the "." For a single character match in one example.

@codyroche7586 4 жыл бұрын

Example of the power of RegEx, you can get all lines with private addresses. The command silps in under the 255 character limit, but DOES tax the CPU: show run | grep "(10(\\.(25[0-5]|2[0-4][0-9]|[01][0-9]{2}|[0-9]{1,2})){3})|(172\\.(1[6-9]|2[0-9]|3[0-1])(\\.(25[0-5]|2[0-4][0-9]|[01][0-9]{2}|[0-9]{1,2})){2})|(192\\.168(\\.(25[0-5]|2[0-4][0-9]|[01][0-9]{2}|[0-9]{1,2})){2})"

@HtopSkills 4 жыл бұрын

Good sharing

@backslash777 4 жыл бұрын

I remember back in the days when I started my job as network administrator, that you can define aliases just as in *nix environment. It comes really handy when you are debugging something under the pressure when you can't remember the correct order of the words in command. Just an excerpt of a few aliases useful to me: alias exec bsa sh ip bgp all sum alias exec bs sh ip bgp sum alias exec tm terminal monitor alias exec si show interface description alias exec sri show run int alias exec cpu sh proc cpu sorted 5min alias exec s sh run alias exec c conf t alias exec sir sh ip route alias exec cc clear counters

@davidbombal 4 жыл бұрын

Great aliases Lukáš - thanks for sharing.

@PowerUsr1 4 жыл бұрын

Does still work between reboots?

@markmcsweeny1576 4 жыл бұрын

Awesome - a great and very flexible alternative over | inc & | exc

@ahkh815 4 жыл бұрын

Thanx

@Prabhatkumar-kk8po 4 жыл бұрын

Hey David, thanks, now i know how to do nested grep in cisco IOS.

@davidbombal 4 жыл бұрын

Glad you found the video useful Prabhat!

@demetriorosario8134 4 жыл бұрын

great video David, just these command works on GNS3 or work in packet tracer to tray using it

@sumitrana5060 4 жыл бұрын

Hello Sir, I really like your videos

@chidioko 2 жыл бұрын

It’s David Bombal. Of course one should click the ‘Like’ button BEFORE you watch the video. The guy’s content has a GOLD STANDARD guarantee to be EXCELLENT!!!

@davidbombal 2 жыл бұрын

Thank you!

@taohawaii 4 жыл бұрын

grep -v "172\|192" also works and is slightly shorter, especially for many terms

@jasonme3557 4 жыл бұрын

Right there with you Dave. My glasses are on. You have the Con.

@sanjoychhetri984 4 жыл бұрын

Thanks u sir

@subkhanave 4 жыл бұрын

thank you, as linux sysadmin being a network engineer now I miss this stuffs. Where did you found this David? you rocks !!

@davidbombal 4 жыл бұрын

Thank you! lol... I have been in this industry for a long time...you learn things that way. A better way is to read books, read documentation and follow others in the industry and learn from them :)

@Mongoosemcqueen 4 жыл бұрын

whoa Thanks

@davidbombal 4 жыл бұрын

Glad you found the video useful @Mongoosemcqueen!

@mustafaturk6870 4 жыл бұрын

You are the man :)

@memem1792 2 жыл бұрын

you are my mentor

@kris___5655 4 жыл бұрын

Very Nice and informative vidio

@muradbayoun4930 4 жыл бұрын

I believe that you are the best one how tech Networking thanks for your efforts and I which to you more than the best.

@davidbombal 4 жыл бұрын

Thank you for the kind words Murad!

@davidibrahim7809 4 жыл бұрын

Nice video David Bombal. Just want to find out about the "shell processing full" command. How would this command affect the CPU and/or memory of the device itself? Thinking of a situation whereby enabling the command may trigger a spike in CPU/memory of the device to a point that may warrant an administrator to initiate a restart. Just a thought.

@DanielSlipshod 4 жыл бұрын

That is really cool, I have never really like the include command in the show | include, I will play with this. Does one need to turn off shell processing full when your done with the device?

@davidbombal 4 жыл бұрын

You can enable this in just the terminal, or globally. From the documentation: Users have options to enable and disable Cisco IOS.sh environment in a given terminal. To enable shell processing on the terminal and to enable trace enter the following: Router> enable Router# terminal shell Router# terminal shell trace To disable shell processing on the terminal enter the following: Router# terminal no shell When you disable the shell environment, it does not destroy anything. Configuration Option Users have options to enable and disable the Cisco IOS.sh environment in the global configuration mode using the shell processing full command. This is the recommended option. The shell processing command without the full keyword enables the default behavior of Cisco IOS.sh to be avialble. But to enable shell processing and access all its functions, use the shell processing full command.

@albert30300 4 жыл бұрын

I just found out can run VM on router yesterday from Network Chuck

@inspireeshwar2225 2 жыл бұрын

Very useful tips! I'm able to use shell processing full only on some cisco routers. Is there any way to know which routers/IOS versions support this command?

@Firstname_Surname 4 жыл бұрын

Depends on the Cisco IOS version, older versions only support include/exclude/beg etc. By the way, don't understand why this is a novelty when you can simply press the TAB twice and see all available commands. Anyway, thanks for the video. Always good to relearn!

@davidbombal 4 жыл бұрын

Thank for the feedback. I like the saying "it's easy when you know how". I also like "the more you know, the more you realize how little you know" which I have found true over the years. Lots of people watching these videos are new to networking / Cisco networking so don't know all options and thus detailed explanations. / + - are also not well known / documented.

@mattdrew8229 4 жыл бұрын

You're wrong that | include only works on one match. You can do show interface | include escription|error|rate and find multiple things. Grep and the ability to exclude is definitely cool though!

@syl201971 4 жыл бұрын

wow so cool

@Burlacu95 4 жыл бұрын

You're the best.

@crumdub12 4 жыл бұрын

Dave, you are giving away all the CCIE commands !!!

@davidbombal 4 жыл бұрын

lol... more commands coming soon :)

@louisroyce15 4 жыл бұрын

Useful video. In the past i've used "show int | i GigabitE | Last in" to determine the last time a switch-port has seen traffic... not sure if there's a better way of doing it?

@davidbombal 4 жыл бұрын

Thanks for sharing your tip with us Louis. I just think these are options and using include where you can instead of grep makes sense as you don't have to do anything extra to use include commands.