For those tasks I use most of the time block selection.

Put your cursor on the first # character, press CtrlV (or CtrlQ for gVim), and go down until the last commented line and press x, that will delete all the # characters vertically.

For commenting a block of text is almost the same: First, go to the first line you want to comment, press CtrlV, and select until the last line. Second, press I#Esc (then give it a second), and it will insert a # character on all selected lines.

:set fileformat=unix
ou pour windows :
:set fileformat=dos

et aussi (http://linuxfr.org/forums/astucesdivers/posts/%C3%A9diteurvim-numeroter-les-lignes-sous-vi) :

:set list/nolist pour afficher/cacher les caractères non imprimables (EOL, ^M, tab...)

<CTRL+p> complétion automatique de frappe sur la base des buffers ouverts et du/des fichiers .ctags
et bien d'autres options encore...

on peut aussi mettre ! pour l'inverse des options bianaires (list / nolist ou list!)

tabstop
Set tabstop to tell vim how many columns a tab counts for. Linux kernel code expects each tab to be eight columns wide. Visual Studio expects each tab to be four columns wide. This is the only command here that will affect how existing text displays.

expandtab
When expandtab is set, hitting Tab in insert mode will produce the appropriate number of spaces.

shiftwidth
Set shiftwidth to control how many columns text is indented with the reindent operations (<< and >>) and automatic C-style indentation.

softtabstop
Set softtabstop to control how many columns vim uses when you hit Tab in insert mode. If softtabstop is less than tabstop and expandtab is not set, vim will use a combination of tabs and spaces to make up the desired spacing. If softtabstop equals tabstop and expandtab is not set, vim will always use tabs. When expandtab is set, vim will always use the appropriate number of spaces.

En cherchant à retrouver le début de mon fichier (plus de 3000 lignes !) sous vim je me suis mis à googler...
Alors bon c'est 1G ou gg
("g" pour "go")

918 down vote accepted


Use the > command. To indent 5 lines, 5>>. To mark a block of lines and indent it, Vjj> to indent 3 lines (vim only). To indent a curly-braces block, put your cursor on one of the curly braces and use >%.

If you’re copying blocks of text around and need to align the indent of a block in its new location, use ]p instead of just p. This aligns the pasted block with the surrounding text.

Also, the shiftwidth setting allows you to control how many spaces to indent.