Linux Shell Aliases: What You Need to Know

[@tobortine]

Really good, I'd forgotten about alias. Have a safe journey home.

[@elnurvalikhanli6783]

Enjoying your tutorials each and every time ! Good job dude.

[@haydenc2742]

I ALWAYS add ll="ls -lah" to my aliases...so easy to type ll for ls or dir Great video's LOVE it!

[@josephturi]

7:34 "However when I create a new shell it's gonna read that configuration file.. and lr will still not resolve to anything.. because everything must suck. Yep, sums up a typical day working as a software developer. : D

[@mihaiprofir7]

i did alias lr="ls -lra" then made sure that the current shell has the command alias stired with grepo and then did alias >> .bashrc , for kicks, as we learned in the previous videos, then i rememebered that i should be carefull while root

[@mihaiprofir7]

it would have been better to echo a few new lines with echo -e ' ' I think

[@code7bit301]

Nice i was wondering how the command "ll" was always working in Mint distributions :) Thank you!

[@juanvaldes7873]

Thank you very much Dave. So, alias is similar to setting variables in let's say Python?

[@tutoriaLinux]

Essentially the same thing, yes!

[@juanvaldes7873]

Wonderful! Makes sense. Thank you

[@ElliyahuRosha]

Awesome! Btw, how do u make the grep command to color your search red ? 10x

[@mehdizineddine5402]

thank you for helping me understanding this cours

[@bdf2718]

So why "alias | grep lr" and not "alias lr"? Your way spawns an extra process and requires more typing for (as far as I know) no gain. In fact your way can give false positives that have to be eliminated by inspection if, for example, you have aliased "balrog" to "xyz" or aliased "xyz" to "balrog".

[@rdcpatches0]

This is pretty late, so I hope you sorted it out by now, but the reason he did "alias | grep lr" is beacause he was seeing if there was already an alias that was called lr so he wouldn't overwrite it with something else. What is happening in the command he typed is: "alias" alone will output all alias's created. We are going to take the ouput of "alias" and run through grep (which is what the "|" means) which will search for any instances of the string "lr" and print it below. Since there were no instances of "lr" nothing showed up, which I think is where the confusion came from since it just looks like a command was run.

[@bucherregaldomi9084]

@@rdcpatches0 I think you didn't understand what homie said, he means that with "alias" alone you can search, no need to grep tho, but cheers ma dude

[@dipi71]

My favorite aliases: ...='cd ../..'; d='cd ~/Desktop'; o='xdg-open'; psf='pstree -hA'; r='ruby -we'; top='htop'; and my longest one, for blanking the display from a console window: x='xlock -nolock -fontset fixed -erasedelay 0 -mode blank'. Cheers!

[@sarahpes32]

Thank You!!! that was very helpful

[@HigherPlanes]

Aliases are a huge timesaver but I use them sparingly becuase I tend to forget my commands when I overdo it. BTW- what are your feeling on using functions which are supposedly better than aliases?

[@tutoriaLinux]

Agreed -- using too many aliases can get complicated. Functions and aliases each have their place -- in my opinion, different tools for different jobs. Aliases are for command shadowing, setting default arguments, and simple one-liners *AT MOST*. Any real logic should be encapsulated by a function.

[@HigherPlanes]

I have aliases pretty much mastered lol, and eventhough I can't think of an immediate reason for using functions at the moment, I'd still like to learn more about them and how to use them. Maybe in future videos if you're feeling up to it you can do a tutorial =)

[@qp2036]

are you gone or will it be more videos coming?

[@tutoriaLinux]

Your wish is my command :-D kzbin.info/www/bejne/qH3Kg56ggpyUo9E -- it's been a crazy few months (big move, big new job, etc.) but things are a bit calmer now. More videos (and some podcasts) will be on the way in the next few weeks!

[@qp2036]

tutoriaLinux Oh wow thats great! thanks for the quality content

[@charissebulan4298]

Thank you so much! ❤️

[@nickyeoman]

why did you do it in bashrc and not bash_aliases ?

[@TaeruAlethea]

Its probably because not all shells will have an alias file made. There was a comment in the bashrc file explaining how to make an alias file.

[@tutoriaLinux]

Couple of reasons: rc files are a lot more generic -- almost all shells have them, so teaching people to 'just use the shell rc file' is a case of 'minimal learning for maximum effectiveness in real life.' You can absolutely use the bash aliases file (which is specified in the bash rc file) -- it's not a bad idea or anything. However it's nice to confine all environment changes to as few files as possible, especially if you are working on a system with other sysadmins. Also, since for e.g. zsh I already split out zshenv, zshrc and zshrc.pre, I feel like if I have any more shell config files cluttering up my home directory, I'm going to lose my grip on sanity. Again, bash_aliases (or whatever aliases filepath you define in .bashrc) is fine. If you're just dealing with bash, it's perfectly fine to use that file.

[@tutoriaLinux]

Bingo! Nice.

[@nickyeoman]

Cool thanks.

[@alextorres9408]

trying to go to tutorialinux.com and getting "your connection is not secure". "SEC_ERROR_EXPIRED_CERTIFICATE"

[@tutoriaLinux]

Hey, thanks for letting me know! Looks like the letsencrypt cert renewal didn't work; should be all set now :-D. Whew! Appreciate that.

[@tubeDude48]

Aliases should be put in *.bash_aliases* "NOT" .bashrc !!

[@tutoriaLinux]

That’s the convention, but I like to keep shell configs (bashrc, zshrc) in git as a single file to make things clean. It hasn’t hurt anything yet, but I could be unintentionally causing a rift in the space time continuum. Is there a downside to using a single file per shell (for all shell config) that I’m not seeing?

[@gravelman5789]

Dude!!!! EVERYTHING MUST SUCK!!!! 😆😆😆😆 im makin a tee shirt !!!!! it will say that in the Front and the Back will say rm -R/.... 🤔🤔😉😉😆😆😂😂

[@Steeldragon92]

You are funny, Dave ) I can be the same as you sometimes )