Save a file you edited in vim without the needed permissions

:w !sudo tee %
I often forget to sudo before editing a file I don't have write permissions on. When you come to save that file and get the infamous "E212: Can't open file for writing", just issue that vim command in order to save the file without the need to save it to a temp file and then copy it back again.

638
By: skinp
2009-02-25 16:27:24

8 Alternatives + Submit Alt

What Others Think

this is just awesome! of course you have to have sudo rights...
nottings · 490 weeks ago
awe-some !
pyrho · 490 weeks ago
Unfortunately this does not work well in gvim.
trey · 489 weeks and 4 days ago
I wish I could vote this up more than once. Thanks!
Alanceil · 489 weeks and 4 days ago
nice - thanks!
waltharius · 487 weeks and 3 days ago
I use :w !cat > % which is similar, but shorter (you can add sudo in there if you want).
spatz · 483 weeks and 3 days ago
awesome!
Iany · 479 weeks and 6 days ago
I always quit vi and sudo vi when I find I haven't write permission before. This command save me much time.
kylexlau · 479 weeks ago
!sudo cat > % won't work: * the su-ed command is "cat" but * > % isn't an argument for "cat", but a redirection it's the same for sudo echo > myRootFile.txt you could try with sudo sh -c "cat > %" but it's longer so tee is ok. comments welcome.
ioggstream · 471 weeks and 1 day ago
greatest commend ever!!! tnx!
ilyxa · 468 weeks and 1 day ago
how often did i miss this command, perfect! +1 vote for greatest command ever
buergi · 462 weeks and 6 days ago
i have added: cmap w!! %!sudo tee > /dev/null % to my .vimrc, so I can just use :w!! to write files with sudo
f3lix · 454 weeks and 2 days ago
Pretty sweet. I'm an Emacs guy, but I'm impressed with the succinct way vi handles changing effective UID. By the way, does this work for files that have spaces in the filenames? I would guess that it wouldn't. Is it fixable by double-quoting the %?
hackerb9 · 451 weeks ago
You made me curious about filenames with spaces so I had to try it out. It only works with the "%". But as a general rule, I try not to name Unix files with spaces.
skinp · 450 weeks and 6 days ago
Really nice! I just freaked out when I tried this with nvi (in Ubuntu 9.10)... it did not ask for my password and yet it wrote an /etc file. Please shed some light!
ez77 · 447 weeks ago
Wow, this will come in handy. So will f3lix's :w!! but I like to use abbreviations, i think they are cleaner than remapping: ca w!! w !sudo tee "%"
jearsh · 442 weeks ago
Thanks for this. It will save me a lot of frustration.
idemal · 434 weeks ago
is this also possible for nano?
rubo77 · 424 weeks and 1 day ago
Cool.!
knityster · 411 weeks and 3 days ago
Make sure to configure sudo properly to ask you for your ROOT password and not your USER password. Otherwise it reduces the security of your system.
grep · 389 weeks and 3 days ago
:w !sudo tee % I'm hoping someone can elaborate on this command for me. Not sure I understand what the "%" is doing, and where tee is getting its input from. Tee reads from standard input and outputs to the first argument (file), which in this case, is the "%". In VIM, the "%" is often used with regular expressions to mean "every line in the file". So how is this working? Because using those definitions, the command doesn't make any sense.
yohhan · 386 weeks ago
...I should add, great command. This situation happens to me all of the time.
yohhan · 386 weeks ago
Have my babies? Just kidding. Awesome solution for a common derp.
SpaceKraken · 384 weeks and 4 days ago
I can not tell you how often i use this.
threv · 344 weeks and 6 days ago
@yohhan % in vim command line mode , It represents current file, you can test it with :!echo % in vim
dfang · 311 weeks and 2 days ago
@yohhan or :h cmdline-special
dfang · 311 weeks and 2 days ago

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