Executing commands in C

[@arnaud_b42]

You just explained everything i needed to know to do my project at school-42 thanks a lot 😁

[@nom9d825]

same))))

[@pierinacamarena2507]

hehe here for it as well

[@nom9d825]

@@pierinacamarena2507 pipex or mini talk?😂

[@pierinacamarena2507]

Pipeex

[@nom9d825]

@@pierinacamarena2507 nice. Little advice. Do it with bonus part from start)) you will use it in minishell.

[@JJ-uu5jg]

great playlist of videos! for some reason it doesn't have an order in KZbin, can you please list the reasonable order in which one should watch the videos? Thanks a lot!

[@CodeVault]

Some videos on the channel don't have an order in which they should be watched although this one does and it's in the Unix Processes playlist: code-vault.net/course/46qpfr4tkz:1603732431896 or on KZbin: kzbin.info/aero/PLfqABt5AS4FkW5mOn2Tn9ZZLLDwA3kZUY

[@a6071-b3y]

i'm really enjoying this videos! thx man

[@hectordoyle4718]

curiosity: would it work if i used exec() and pass "&" as an argument to skip forking?

[@ronjeremy1232]

Pass & as an argument to what?

[@CodeVault]

Remember: The exec arguments you pass in are actually the argv for the program you're launching. So, even trying to pass "&" like so: execlp("ping", "ping", "-c", "3", "google.com", "&", NULL); Wouldn't work because it would be passed to the ping program and ping wouldn't know what to do with it, thus giving an error. "ping google.com &" in a terminal is a bash script that does more than just executing one program. Bash knows that '&' isn't supposed to be sent to ping and treats it in a special way so it executes the program without passing that '&' and then moves that program to the background.

[@bama2619]

well done. Could you give a link at the end of your video to the next video, please? And when you mention some previous lessons, please, also make a link. It is easier to navigate than just keep watching videos in a random order. Thank you.

[@CodeVault]

There's a playlist available on our site: code-vault.net/course/46qpfr4tkz:1603732431896/lesson/as15alvu0a:1603732432433

[@bama2619]

@@CodeVault I did not know you have this web-site. Now the order is clear. Thank you.

[@CodeVault]

There are playlists on KZbin as well!

[@enesb4797]

I can't ping, I wrote the code you wrote execl().. but nothing happens when I execute my program. It says ping: socket: operation not permitted.

[@CodeVault]

Ah right.... I got this issue as well. My quick solution was to just run the process as root

[@angelomarzocchi4202]

this man tells the kernel what to do 💀 thanks for these videos, you're helping a lot!

[@lyricsmaker-poplyricsmaker1183]

Really good videooo exactly want we wantedd thankssssss

[@ShivamSharma-nb6gh]

Family of exec function is not working in visual studio on Windows connected to WSL UBUNTU Linux . Fork() is working fine but exec family is not working neither it is showing any error it's just ignored in program 😦 Please help is, there anything with directory @CodeVault

[@СтаниславУгольников-й4щ]

how we can execute a process in background, like using "&" in terminal?

[@CodeVault]

There's this video on the topic, hope it helps: kzbin.info/www/bejne/babHY5ynqp6msM0

[@mohammedshopan2226]

Now I understand why node js use exec function in child process module . That is aswom

[@ayoubben109]

Grande, muy bien explicado!

[@naitside3410]

why do you write "ping", "pong", 2 times and it works ?

[@CodeVault]

The first "ping" is the program's name. Everything else is what the argv array will be in that program's main function. By standard you have to pass the name (or the full path) of the executable as the first element in that argv array

[@pulgamecanica]

I love your videos keep it up! Although I would love them more if you used Linux hahahahahah Cheers!

[@CodeVault]

The VSCode instance is actually a remote connection to a Linux machine I do use Linux as my desktop dev environment although I am not confident on the recording aspect... it has some weird quirks. I might give it a try at some point

[@pulgamecanica]

@@CodeVault You're right and I always love how your videos are portable hahah many people don't take the time to explain which library you should use for different OS.

[@siyanibillinumberone4054]

Thanks for video

[@ujjwalbansal1070]

Awesome... well explained.

[@haanhtran9351]

Thank you!!

[@alanmenescal9871]

make a video using execve instead of execlp and use it for simulate a pipe from shell, plis u.u

[@CodeVault]

There's actually already a video on this topic. You can find it here: code-vault.net/lesson/oxyoxbvnak:1603732432935

[@edwardmacnab354]

can this be done in windows visual studio code or is a linux system a requirement

[@CodeVault]

This is basically only for Linux (and Mac). But you can install WSL on Windows and execute the code through that

[@murilo_dev]

Thank you for the work! You give so much for the community! Thank you!

[@demonikidoff4613]

thanks bro

[@trantor3604]

good asf

[@ShivamSharma-nb6gh]

@codevault I want to execute multiple programs not just one, one after another using fork and exec

[@robheusd]

One way to do that is call bash and have it execute a shell script which in turn calls the programs. Or do multiple forks.

[@carolineturingds]

Very useful and explicative!

[@sidewalkchess]

благодарчик!

[@mahdesouqi8603]

thx fot this video , Q: how can i execute a process in the background ?

[@CodeVault]

What do you mean by: "in the background"?

[@mahdesouqi8603]

@@CodeVault run the process in the terminal without blocking by put (&) in the end of the command Ex: firefox&