Linux Terminal 201: How To Use Grep! - HakTip 158

Hak5 -- Cyber Security Education, Inspiration, News & Community since 2005:
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You requested it in the comment section of my last episode of HakTip, so today, I'm doing an entire episode dedicated to grep!

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Please watch: "Bash Bunny Primer - Hak5 2225"
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Founded in 2005, Hak5's mission is to advance the InfoSec industry. We do this through our award winning educational podcasts, leading pentest gear, and inclusive community – where all hackers belong.

[bradleyeverson]

"grep" is a very useful Linux command for the day to day grind. "sed" command is another good one for everyone know.

[RonNg]

Great! I've always wanted to get more savvy with grep. Definitely helps in troubleshooting in my job.

[Torsan]

Weirdest thing! I just learned about grep yesterday, and I was sitting drinking my morning coffee thinking "Hmmm maybe I should learn som more". I open my computer and look at my YT subs, and the FIRST one is this video! Thanks! :)

[ScottClevelandmi]

I love segments like this. The problem with trying to learn Linux: Nearly everyone writing documentation or "tutorials" assumes you know at least 1 obscure item that is a black hole of information onto itself. Theses segments are a great source of back to basics knowledge that help me fill in the holes in my personal understanding of this frustratingly awesome OS.

Btw: I only discovered hak 5 a month ago....how did she get the handle "SNUBS" ?

[someyounggamer]

When Knowledge is Free!


Thank you, Hak5!

[DAVIDGREGORYKERR]

It was implemented in the Microsoft Compiler MSVC 6 where it is used to search to lines of code that can be amended to code faster when compiled.
MSVC --- Microsoft Studio Visual C ((6)/(VI)).

[robindp]

Great video Shannon - I have informally used grep for 20 years, and still managed to learn something! :)

[TheCorruptedHuman]

I've been a Unix admin for years and never even questioned what "grep" stood for.... regex 4 lyfe!

[AndrewBaba]

....to be continued - I hope. Very interesting

[weirdscix]

Some very useful information. Thank you.

[Zeeye]

That insane! Thank you for explaining.

[ejohnfel]

Definitely do another one of these with writing regular expressions. RE's are a powerful...powerful tool in the right hands, not just for script Jockey's, but forensic analysts too... also majorly useful... zgrep.

[banas]

Pretty sure "global regular expression print" is a bacronym, devised long after the grep command was created. There doesn't seem to be a consensus as to the origin of "grep". I think it was just one of those command names that seemed to match what the command does.

[jamescyberops]

Thanks!! in the interiews they always got me in grep questions, and yes I loved that Pacman too ;) (hehehe sorry...)

[frankcelestino]

First came across regex while playing with python, but haven't committed anything to memory. I've seen grep, but haven't had much use with it. Perhaps it's flash card time

[ulquiorracifer]

What laptops do you use in these videos ? Im curious

[schmudge]

Just had a foreign Login user with Administrator tag under it bumping me off. Need how to hack Admin login please.

[cphrpunk]

For me, alias gerp='grep'
Seems I can't spell it. Ever.

[raafetzribi]

this is the best Youtube channel ever, Greeting from Tunisia guys

[oxdub]

It's not like Shannon wasn't already hot enough but now she's explaining GREP. My heart goes pitty pat...