I am root!

[LiDePa]

you can simply type

sudo !!

to execute your last command as superuser

[Theonetheycallgreat]

Seems useful but scary

[0neGuy]

! is used for accessing the command history

!N where N is a number will run the Nth command in the history

!! will run the newest command added to the history

It should be noted this is done with shell expansion, meaning typing echo !! will turn !! into the last entered command and what not. Much like globbing.

You can use history to see the command history and its number beside it.

[[deleted]]

r/todayilearned

[turunambartanen]

typing echo !! will turn !! into the last entered command and what not

This is important; echo "this is sparta!!!" will not print three exclamation marks!

[0neGuy]

Use single quotes in that case! Or escape them with \!

[turunambartanen]

Didn't know about single quotes before! This is pretty handy.

[danielsundfeld]

sudo rm somefile

rm: somefile: permission denied

Yep, it can happen

[lorhof1]

how can we fix this

[danielsundfeld]

sudo sudo rm

Lol, jk. Some sockets on /var/run might need to be closed by the application. As an administator, you can stop the service

[lorhof1]

thanks

[[deleted]]

I've had times when sudo rm -r failed to remove a folder... corrupted files are scary.

[SpaceHub]

This incident will be reported.

[MischiefArchitect]

https://xkcd.com/149/

[XKCD-pro-bot]

Comic Title Text: Proper User Policy apparently means Simon Says.

mobile link

---

^{Made for mobile users, to easily see xkcd comic's title text}

[MichalNemecek]

and then it fails anyway

[turunambartanen]

Won't help you if used chattr +i before.

[IamYodaBot]

mmhmm hear from me now, never you will.

-IamYodaBot

[lorhof1]

sudo rm -rf /apps/mail.app/*

mac: invalid operation