this post was submitted on 24 Mar 2024
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    356
    When you realized you forgot sudo (lemmy.world)
    submitted 7 months ago by [email protected] to c/[email protected]
    43 comments fedilink hide all child comments
     
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    [–] [email protected] 49 points 7 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] 15 points 7 months ago* (last edited 7 months ago) 
    alias fuck='sudo $(fc -ln -1)'
    [–] [email protected] 29 points 7 months ago

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

    [–] [email protected] 18 points 7 months ago (2 children)

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

    [–] [email protected] 13 points 7 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] 4 points 7 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

    [–] [email protected] 8 points 7 months ago (1 children)

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

    [–] [email protected] 1 points 7 months ago

    Oh good point, I didn’t think about that

    [–] [email protected] 3 points 7 months ago (1 children)

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

    [–] [email protected] 6 points 7 months ago* (last edited 7 months ago)

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

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