How to Use Command-Line Reference Tools in Linux (apropos, which, whereis, whatis)

Have you wondered how to lookup and refrence bash commands natively in the Linux command line? In this video we show you some tools that self-help your way into mastery!
00:00 Intro
00:28 apropos
01:47 whatis
01:59 whereis
02:13 which
02:56 info
Sometimes you might be looking to perform task in Bash but aren’t sure what command to use. Apropos lets you search for a list of commands based on keywords appearing in their man pages.
If you do know the command but not sure what it does, whatis will give you short, one-line description pulled from the man page.
To find the location of a command in the filesystem, both whereis and which will get the job done. Second one is more concise and useful for scripting purposes.
Lastly, the info is a command that yields info pages, an alternative to the man pages that gives you more detailed information.
Learning these self-help tools can save time when using the command-line, compared to Googling and reading through blog articles. It’s especially helpful if you’re on a system without Internet connectivity too!
We’re open to ideas and suggestions for more commands.
Let us know in the comments below!
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[@JJJJ-gl2uf]

Good video. I'm taking a Linux Essentials course right now and this short video helps. Thanks.

[@marcogil6665]

Very much appreciated,please keep sharing knowledge with us. I am confident a lot more subscribers and views are coming your way. Thanks!

[@Cyberspatial]

marco gil will do! Thanks for the support!

[@amitdwivedi1045]

Great video thanks for sharing.....pls keep sharing

[@avishdhirawat]

You have made great videos and u have a lot of knowledge... I am wondering why it still not getting more views..... I wish u get more views and we get more content like this....... BTW Loved your videos.

[@Cyberspatial]

Avish Dhirawat thanks!!

[@RashadPrince]

These are GOLD 💪🙏

[@Cyberspatial]

Shad Price thanks!

[@EslamMourad_7]

I Love your content from Egypt

[@Cyberspatial]

Thank you!

[@liesdamnlies3372]

Powershell has this too!
You just type Get-Help and get a ... ... well you get the syntax and a link to Microsoft's website...
Okay but you can fix that! You run Update-Help, wait for all that sweet documentation to download, and then run Get-Help on a cmdlet again and... ... ... okay so there's probably only an extra sentence or two plus a link to Microsoft's website...but it's the thought that counts!

[@Cyberspatial]

Thanks for the tip! Wish powershell wasn't so verbose. But it's object-oriented... can't be helped.

[@liesdamnlies3372]

@@Cyberspatial XD To be honest, I was mostly being facetious. I think Microsoft really drops the ball in not including an offline copy of the full documentation.
I mean...it's not _bad_ per se, but it certainly has annoyances and you hit on one.

[@josephkarama6647]

Thank you for your educational mini videos , kindly if we can check the openssl command , would be very appreciated

[@Cyberspatial]

Thanks, we're looking at designing a new style of video for the commands.

[@AbleTwentyFive]

why do these commands not work in kali?

[@Cyberspatial]

You might be missing certain packages.