32. Unix Tutorial - What is ulimit and How to Use it

This video tutorial on Unix provides detailed information about how to use Ulimit in UNIX.
You can visit Unix related videos here : • 01. Introduction to U...
Website: guru4technoworl...
Facebook : / a2zoftech

[@GaneshManika]

Nice job!!

[@ashwanthbalajir5153]

The nofile hard limit value is set to 63000 but you are trying to change the soft limit to 65535 which is above the hard limit that's why it is throwing the error

[@ibrahimteker2497]

thanks for the information. i have a question about it. is this limits can cause segmentation fault in a python script? when my python program uses large amount of data it gives segmentation fault but it happens unpredictable moments.

[@YannStoneman]

At 4:45, I believe it should be "First In First Out," not "File Input, File Output," right?

[@sandipm]

Hello Yann, You are right - It is 'First In First Out' a special file.

[@jesusosorio7205]

thanks a lot, very clear. Congratulations!
regards from Mexico

[@sandipm]

Thank you so much, Jesus, for appreciation. I hope you are enjoying other Unix tutorials also. Have a great time.

[@jesusosorio7205]

you are welcome. Last question, if you allow me. I am testing for maxlogins for a x user I am applying under the /etc/security/limits.conf file but is not working . any idea?

[@mayank01091989]

I want to change ulimit pipesize from 8 to 4096 how to do it??

[@srikanthbhaee9826]

i am changed in the limit with root user, after reboot is required ?
i am changed the ulimit with option ulimit-n -----
sessionwill closed it not showing in ulimit -a?
plz sugesst

[@sandipm]

Did you change ulimit for any specific user?

[@stephanusbitter7528]

Hi
I have tried in vain to change the limits.conf.
It is saved, but the computer doesn't care what I change in it.
Max locked memory is 64kb for me. Even if I enter #user soft memlock unlimited there, nothing changes. The entry is there, but it doesn't interest him. I can put so much crap in this limits.conf, I don't even get an error message. It always stays at 64 kb... And yes, I changed and saved it as root. If I enter the command in the terminal: ulimit -l unlimited, it sets the 64kb to unlimited. It executes it. Linux doesn't care about the limits.conf files. I've booted them a number of times...and changed them...the values ​​always stay the same.
Its crazy

[@khadeerahammad1646]

How do i make core dump file as unlimited for specific user

[@sandipm]

Have you tried vi /etc/security/limits file and adding the variable for
that specific user?

[@khadeerahammad1646]

@@sandipm yeah.. It's done now. Thank you

[@sandipm]

Great to know! Thank you!