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Htop explained

peteris.rocks

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Re: Htop explained

#71

Post by superchink »

gregmac wrote: post #51
nrclark wrote: post #15

Earlier quoted context omitted.

You should give Macports a try if you haven't already! I run it on my macbook, and it's made a world of difference. 99% of everything I use in Linux can be found in Macports, and it "just works" for the most part. You can't get kernel-specific things like strace, but they do have just about everything else. The big sell for me was being able to install the GNU versions of everything. Macports keeps everything in /opt…

One of the things that I really dislike about homebrew is its refusal to run via sudo plus the requirement that you own /usr/local. This means: 1) It is a security hole; any application can now modify system-wide applications at any time. 2) You can't have multiple users able to use homebrew. I was expecting homebrew to be something similar to apt/yum/etc, but this makes it pretty fundamentally different. How does Ma…

This is no longer the case, as of Homebrew 1.0.

See this change: https://github.com/Homebrew/brew/pull/896

Re: Htop explained

#73

Post by z0r »

CoolGuySteve wrote: post #43

Is there a resource out there on how to write these beautiful terminal HUDs? I'd really like to step up my game for GUI monitoring apps without having to choose between either terminal log spam, PyQT, or a web server. Ideally I'd have something like htop/wavemon/power top that I could stream compactly via ssh.

check out http://urwid.org/ for python

Re: Htop explained

#74

Post by gbrown_ »

agumonkey wrote: post #63
guessmyname wrote: post #9

I switched to macOS from Linux two weeks ago and I am starting to regret that decision. Most — if not all — the commands that I thought I had mastered after years working on Linux environments stopped working because their BSD counterparts have slightly differences that completely break everything I try to do. It is even more frustrating when I realize that I have to deactivate security features built-in the new Appl…

Isn't dtrace a completely different (and broader) tool than strace ?

Yes, dtruss would be a closer equivalent but it is using dtrace under the covers.

Re: Htop explained

#75

Post by Gruselbauer »

blacksmith_tb wrote: post #70
lallysingh wrote: post #44

Earlier quoted context omitted.

I think you're just looking for a book on (n)curses.

For another fun ncurses tool (on a similar wavelength) I have become fond of glances[1] - it breaks out docker containers nicely, along with the good top-like overview of all procs. 1: https://github.com/nicolargo/glances

For general use I'd like to add multitail (logging done wonderfully right), canto-rss (RSS reader/server), ncTelegram (Telegram client), turses (Twitter client), centerim (multi protocol IM client), weechat (IRC) and iftop (traffic monitoring for me), alpine (mail client) and mc (file manager). At least they're the tools termux starts with on my VPS and I pretty much live on there.

Re: Htop explained

#76

Post by TeMPOraL »

Morpheus_ro wrote: post #20
TeMPOraL wrote: post #3

Thank you! Great writeup! I applaud the way you approached it - figuring out every single thing about a tool. Also, I didn't know about 'od' command. Thanks again!

please do explain in 2 words the od command. I was looking on the page and there is only one od command and it is not explained. thank you

> please do explain in 2 words the od command

man od

You asked for two words ;).

Re: Htop explained

#77

Post by dguaraglia »

camtarn wrote: post #16

"[explanation of acpid] But I'm on a virtual server that I don't intend to suspend/resume. I am going to remove it for fun and see what happens. ... I was able to successfully reboot the droplet but after halt Digital Ocean thought it was still on so I had to Power Off using the web interface. So I should probably keep this." Science! :D I love the approach of systematically going through and prodding everything to s…

I used to do a lot of that when I was first learning Linux (back in the day when each Linux distro came with a full "HOWTO" collection.) I have become much lazier since, usually going for defaults and not touching anything unless I need the behavior to change.

Re: Htop explained

#78

Post by p8donald »

idsout wrote: post #36

You swapped the child and parent in the printf statements here https://peteris.rocks/blog/htop/#z-defunct-zombie-process-te... . printf("The parent process is exiting now\n"); This should read child is exiting. printf("The child process is sleeping now\n"); This should read parent is sleeping. Overall, I really enjoyed the article.

Thanks for catching that.

Re: Htop explained

#79

Post by 1amzave »

SkyMarshal wrote: post #61
oschrenk wrote: post #57

Earlier quoted context omitted.

Re 2) I'm running a multi user homebrew setup for years. I have my users (personal and various work accounts) live under the "Local" Group and do ``` sudo chmod -R 770 /usr/local/ sudo chmod -R +a "group:Local allow delete,readattr,writeattr,readextattr,writeextattr,list,search,add_file,add_subdirectory,delete_child,file_inherit,directory_inherit" /usr/local/ ``` I remember sometimes running into permissions issues b…

It's a bit of a smell that Homebrew doesn't do this itself.

Really? If you're going to do that, it seems like you might as well just merge all those users into a single account anyway, considering how trivial it would be for any one of them to execute arbitrary code as any other.

Re: Htop explained

#80

Post by bootload »

nrclark wrote: post #15
guessmyname wrote: post #9

I switched to macOS from Linux two weeks ago and I am starting to regret that decision. Most — if not all — the commands that I thought I had mastered after years working on Linux environments stopped working because their BSD counterparts have slightly differences that completely break everything I try to do. It is even more frustrating when I realize that I have to deactivate security features built-in the new Appl…

You should give Macports a try if you haven't already! I run it on my macbook, and it's made a world of difference. 99% of everything I use in Linux can be found in Macports, and it "just works" for the most part. You can't get kernel-specific things like strace, but they do have just about everything else. The big sell for me was being able to install the GNU versions of everything. Macports keeps everything in /opt…

"You should give Macports a try if you haven't already! I run it on my macbook, and it's made a world of difference. 99% of everything I use in Linux can be found in Macports, and it "just works" for the most part."

First thing I installed in the mac store. Just like on linux, it just works and I get all my favourite tools.

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