Vim command line tool is extremely useful to replace many occurences of a string by another within a file. Using more advanced commands, there are a lot of search and replace options available.:%s/old/new/g. Save a File Using Vi/Vim if you need to save the file that you have opened, and you need to back to normal mode by pressing Esc key, and type the below command, and then press Enter key.
'Vim' is a text editor application well-known for being very customizable with a Vim config file - '.vimrc'. Vim has a long history, and it is popular among Linux users and administrators, because it is included on most servers by default.
'Vim Options' is a Mac OS application that helps to visually edit your .vimrc. It will load a Vim config file and present the Vim settings in a categorized list. Each vim setting can be modified and saved. Builtin documentation helps to figure out the meaning and possible values of every option. Hundreds of options can be looked up by name using a search box.
Why is Vim Options useful?
When you become more advanced, or if you come to Vim from some other editor, you would want to modify the default vim settings. For example 'tabstop' option dictates how wide is the 'tab' key visually in terms of spaces. The default is that tabstop=8 spaces, which might be too wide. Using 'Vim Options' you can search for 'tabstop' and set it to '4'.
If you prefer spaces instead of tabs, tweak an 'expandtab' setting. Search for 'expandtab' and enable it with a checkbox. Now pressing the tab key would insert 4 spaces. Don't forget to save the modified vim config file to the .vimrc file in your Home folder.
Features:
- load & save Vim settings to .vimrc
- list of all Vim options by categories
- Vim GUI for editing your Vim config
- help documentation lookup for each of the Vim settings
- search options by name
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View Vim Options on the App Store
It may sometimes happen that you open a system file for edition, forgetting (or not seeing the warning) that the file is actually read-only. Then you make a couple of changes, then try to write the file.
A nice message then pops up:
Can't open file for writing
Rather than being tempted to exit (ESC :q!), lose your changes, reopen the file with sudo (sudo vim /path/to/my/system/file) and editing it again, you can use the following interactive command right in Vi/Vim to write your changes:
This command will ask for your password, then you will be able to acknowledge the buffer changes or reload the file to its initial state.
At this stage, you will be presented with the content of the file and a prompt to press ENTER or type another command.
Then type the letter O to simply save the file and move on.
Note that pressing L seems to do pretty much the same thing. The file will be saved but remains opened in Vi/Vim for more editing or reading. We can now exit normally by typing ESC :q! since the file is still opened as read-only.
For reference, below is what those commands actually mean and do:
Save Vim File Mac Os
- :w : Write
- !sudo : Invoke a shell with the sudo command
- tee : the output of the write command above
- % : the current file path
Save Vim Macro To File
That's it for this quite short first post. I hope this trick proves useful, as it saved my day earlier today :) Any comment is obviously more than welcome.