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Three hacks and commands to use in your terminal.

antonrich profile image Anton ・1 min read

The first one is:

du -sh */ | sort -rh | head -6

This command will show 6 heaviest folders.

du - disk usage

| - pipe. Which works like pipes in Elixir and Elm.

Basically, the output of the first function becomes an input for the next function and so on.

head - shows only a certain amount of output.

The second one:

Turn this >

A terminal with a long line before the dollar sign

into this >

a terminal with just a dollar sign

Just add this to your ~/.bashrc:

PS1='\$ '

After that you need to restart your bash:

source ~/.bashrc

Also, there are different ways to restart your bash.

There are more ways you can set this up check out this overflow to find out more.

The third one:

Creating folders with a pattern. Recently I had to create 8 folders for my codewars challenges:

mkdir kyu_{1..8}

I unfortunately don't remember where I find out about this command.

Oh, I just found it. It's here.

Discussion

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bdmorin profile image
Brian

github.com/uutils/coreutils this rust written du is crazy fast. Also ncdu is great because it maintains an index, you can update it via cron, and use it in prompt lines - requires tokyocabinet though, which some people dislike.

if you have multiple cores, check out this rust rewrite of du.
github.com/sharkdp/diskus
It's unreasonably fast.

Thanks for the tips!

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antonrich profile image
Anton Author

Do you know what it means?

diskus: could not contents of directory './.gvfs'
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bdmorin profile image
Brian

Did you get this figured out?

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antonrich profile image
Anton Author

No, I haven't yet. Mainly, because diskus doesn't do the same thing in comparison to du.
Maybe I missed some options but diskus weighs my whole drive. I need to weigh the folders separately.

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antonrich profile image
Anton Author

Gosh, I like Rust. Thanks, for sharing.

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antonrich profile image
Anton Author

But I will probably later look more into github.com/vmchale/tin-summer

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tux0r profile image
tux0r

du -sh */ | sort -rh | head -6

sort: illegal option -- h

Just add this to your ~/.bashrc:

You should add that a major part of your article is only applicable to bash users to your tags or the headline.

mkdir kyu_{1..8}

At least this is portable. ;-)

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antonrich profile image
Anton Author

Do you use zsh?

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tux0r profile image
tux0r

I use the POSIX standard shell, the ksh, on most of my servers. (The notable exception being one which has the tcsh, but I usually don't try to use it for scripting.)

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shubhamkhandare profile image
Shubham Khandare

Can you help with second one.. Is there any way to do it for session with command?

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antonrich profile image
Anton Author

Yes.

Just enter this in your terminal as a command (don't put it in your bashrc file):

PS1='\$ '

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shubhamkhandare profile image
Shubham Khandare

but that does not work on unix like environments !

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antonrich profile image
Anton Author

I'm sorry. I'm kind of unfamiliar with unix. Do you mean on systems like BSD?

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shubhamkhandare profile image
Shubham Khandare

Yes. I was on HP-UX.