this post was submitted on 24 Mar 2024
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    [–] kmirl 49 points 10 months ago (3 children)
    fuck() {
        sudo $(fc -ln -1)
    } 
    

    This function takes the last command and puts sudo in front of it. Actually used it in a zoom call at work without thinking and it took a second to realize why everyone was laughing. Not my invention--came across it years ago on stackoverflow or someplace and thought it was funny/useful.

    kmirl@tux:~$ ls /root
    ls: cannot open directory '/root': Permission denied
    kmirl@tux:~$ fuck
    [sudo] password for kmirl: 
    bin  debs  docs  Mail 
    
    [–] [email protected] 29 points 10 months ago

    Considering the function name, here’s an obligatory thefuck plug

    [–] [email protected] 18 points 10 months ago (2 children)

    Isn't this the same effect as just running 'sudo !!' ?

    [–] subtext 13 points 10 months ago (2 children)

    According to this super user question, someone said that !! won’t work in a function, so you must use the fc -ln -1 command in a subshell instead. Note the response that says eval shouldn’t be used (not sure why)

    [–] [email protected] 8 points 10 months ago (1 children)

    Yeah but instead of a function you just make it an alias.

    [–] subtext 1 points 10 months ago

    Oh good point, I didn’t think about that

    [–] [email protected] 4 points 10 months ago

    Eval shouldn't be used on userinput. Meaning that if smb other than you may use this to change the system he could put malicious code in the eval part.

    Probably doesn't matter on shell level

    [–] Cinnamon3431 3 points 10 months ago (1 children)

    no because it takes the previous command and adds sudo to it right?

    [–] subtext 6 points 10 months ago* (last edited 10 months ago)

    !! is a shortcut for whatever the last command was ~~is it not?~~

    E: https://devhints.io/bash#history

    [–] Rustmilian 15 points 10 months ago* (last edited 10 months ago)
    alias fuck='sudo $(fc -ln -1)'
    
    [–] [email protected] 26 points 10 months ago (2 children)

    Lazy vim way I do it:

    ggVG"wY:q! followed by sudo !! then VG"wp:x

    Grab entire file and stuff it in register W

    Exit file

    Reopen sudo

    Select all and replace with register W them write

    [–] rtxn 28 points 10 months ago (1 children)

    Now I understand how the Adeptus Mechanicus feel when they perform a ritual power-on.

    [–] [email protected] 10 points 10 months ago

    It's funny how years of use make that so intuitive but spelled out it's a garbled mess

    [–] [email protected] 10 points 10 months ago (1 children)

    Lazier way:

    :w !sudo tee %

    [–] [email protected] 2 points 10 months ago

    Yeah learning about tee from this thread honestly.

    It's been interesting realizing I had such a useful tool at my disposal but never knew

    [–] [email protected] 15 points 10 months ago (8 children)

    Is there an editor that can request root privileges without restarting it? That would be quite useful.

    [–] [email protected] 11 points 10 months ago (1 children)

    In vim, in normal mode you can do: :w !sudo tee %

    [–] [email protected] 2 points 10 months ago (1 children)

    Apparently that doesn't work in NeoVim, so recently I installed the suda plugin.

    Personally, I just doas nvim and then the file name that needs root access, but it's a handy plugin in case I forget.

    [–] [email protected] 1 points 10 months ago

    ??? I used this in neovim twice today

    :w !sudo tee % then reload when it asks.

    [–] [email protected] 9 points 10 months ago

    i use micro

    [–] Botzo 5 points 10 months ago

    It's a simple trick in Vim:

    https://stackoverflow.com/a/7078429

    For the lazy: :w !sudo tee > /dev/null %

    [–] [email protected] 4 points 10 months ago* (last edited 10 months ago)

    Yeah, in emacs you use tramp to open the file with /sudo::

    [–] eager_eagle 4 points 10 months ago* (last edited 10 months ago)

    micro ftw, no need to even memorize a command, it'll just ask if you want to use sudo

    [–] [email protected] 4 points 10 months ago
    [–] [email protected] 4 points 10 months ago

    kate does this in KDE, but it's not cli.

    [–] [email protected] 11 points 10 months ago (1 children)

    Kwrite/Kate asks you for password. Seriously, why can't they all just use pkexec or some abstraction of it?

    Sadly, i currently borked all Qt apps on my Gtk setup.

    [–] [email protected] 2 points 10 months ago (1 children)

    So does Micro. Nano... Nano does not.

    [–] [email protected] 2 points 10 months ago

    Eh, on console i can just do ssu nano <file>. Graphical editors are in question.

    [–] [email protected] 11 points 10 months ago (2 children)
    :w !sudo tee %
    

    Warning: does not work for neovim

    [–] cybersandwich 2 points 10 months ago (1 children)

    Neovim, the one true vim, why hast thou forsaken me.

    [–] [email protected] 2 points 10 months ago (1 children)

    Iirc the specific reason behind this is

    • sudo by default requires a tty to run
    • vim's bang spawns a tty to execute commands
    • nvim's bang executes the command directly, then pipes the output to nvim

    As a result, sudo (without args) can't work in nvim as it doesn't have a tty to prompt the user for passwords. Nvim also used to do what vim did, but they found out spawning the tty was causing other issues (still present in vim) so they changed it.

    [–] [email protected] 1 points 10 months ago* (last edited 10 months ago)

    There must be more to this. I just launched a terminal and created a file to test with nvim on arch and it works perfectly fine.

    Take a file, sudo chown root:root filename, sudo chmod 700 filename, edit with nvim and save with :w !sudo tee % then reload. Works fine.

    I'm on arch with suckless st.

    Edit:

    Made a demo vid - https://youtu.be/YKZuAvoSW5g

    [–] [email protected] 1 points 10 months ago (1 children)

    sure it works in neovim

    I didn't do any editing since it's just to prove a point, but I think it does fine.

    [–] [email protected] 1 points 10 months ago

    Here is an alternative Piped link(s):

    sure it works in neovim

    Piped is a privacy-respecting open-source alternative frontend to YouTube.

    I'm open-source; check me out at GitHub.

    [–] RoyaltyInTraining 6 points 10 months ago

    One of the many reasons why I use micro

    [–] [email protected] 5 points 10 months ago (1 children)

    C-x C-f /sudo::/path/to/file

    [–] [email protected] 3 points 10 months ago

    I love Emacs. Thanks for teaching me someyhing today

    [–] [email protected] 4 points 10 months ago* (last edited 10 months ago) (1 children)

    I am here for one reason and one reason alone: source anime is Watamote, episode 12 @18:36

    Tomoko tries to approach a girl, but the wind confuses her and she runs away in embarrassment, even though the girl was really friendly and would have liked to talk to her.

    In the meme, this scene is used to parallel the feeling of an external system blocking an operation that both participants would agree to.

    A similar feeling could be memed with the "myth of consensual sex" format.

    [–] Waffelson 2 points 10 months ago
    [–] [email protected] 4 points 10 months ago* (last edited 10 months ago)

    Use suda.vim for automatically dealing with such cases. Works with neovim as well.

    I'll also recommend adding the following to your init.lua or some config file because suda doesn't play nicely with nvim -d or vimdiff.

    -- Disable Suda in diff views
    if not vim.api.nvim_win_get_option(0, 'diff') then
        vim.g.suda_smart_edit = 1
    end
    

    The vimscript version of the same would be:

    " Disable Suda in diff views
    if ! &diff
        let g:suda_smart_edit = 1
    endif
    
    [–] [email protected] 4 points 10 months ago

    sudoedit is more secure btw. Many editors are not built to be ran as root, and this copies the file to a temo directory, edits it without root, and then overwrites the original file on save with root.