open() System Call Program in Linux

[@happyindia5740]

Thank you sir and please make videos on cpu scheduling algorithms like for FCFS,SJF etc.

[@vaiebhavpatil2340]

solution for Q2 for exercise given on your web page?
Q2. Write a program using open() system call to copy the contents of one file into another file.

[@harshavardhan3325]

very good explanation

[@dextutor]

Thanks.. Share among your friends

[@_TushaarGusain]

Can we use libraries of linux like in ubuntu for windows

[@dextutor]

Yes

[@denzilstudies]

Awesome Content. Thank you :)

[@Ki21]

Such grt vdos ❤

[@Zytron]

The auto generated English captions are hilarious.
But unfortunately, I can't use sound right now and I have no clue what's being said

[@ramchanderdahiya9000]

Test.txt is showing no such directory found. I created that file in document file

[@rejwanarahman1886]

Plz make vedio in close system call

[@dextutor]

close(fd)
where fd is the file descriptor.. The use of close system call is to close the file pointed to by the file descriptor fd

[@gilbertolozano3480]

@DexTutor Why doesn't it have subtitles in Spanish?

[@dextutor]

No idea :-)

[@minhhieuhuynh5174]

Thanks a lot for your video. Could you please explain, what does 0642 in open("target",O_CREAT|O_WRONLY,0642); means?

[@dextutor]

These are the permissions on the file. 6 (read and write) for user, 4(read) for group and 2(write) for others. You can give any permissions you want. For details on permissions refer th-cam.com/video/wKZH-7P7YZE/w-d-xo.html

[@minhhieuhuynh5174]

@@dextutor Thank you so much for your explanation :))

[@anayakhan3038]

if we don't have any existinh file how we create it ?

[@dextutor]

You can use the touch command or any editor. Just watch this video
th-cam.com/video/t5CqOY7eTQI/w-d-xo.html

[@Ash-ej3nx]

How does content of file is saved in buf if we haven't assign it

[@dextutor]

The file descriptor of the file is passed as first argument in the read() system call

[@Ash-ej3nx]

@@dextutor so basically it points towards the file and buff is used as memory

[@huzaifa_a4602]

what is the purpose of 0 in 0642?

[@dextutor]

That bit can be used to set user-id, group-id or sticky bit

[@uroojtariq6671]

I am facing an error undeclared o_rdonly how to fix this even i have included all the libraries

[@dextutor]

Use All Caps.. Or share the code so that i can check

[@uroojtariq6671]

@@dextutor ok i will send you tomorrow

[@uroojtariq6671]

@@dextutor i used CAPS

[@uroojtariq6671]

How can i share code with you

[@dextutor]

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