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I'm working on reorganizing my .bashrc. I moved my aliases to .bash_aliases (which is sourced by .bashrc, but I can't figure out how to enable syntax highlighting for this file. vim seems unable to figure out what language the file is in. It works fine for .bashrc. Any ideas?

Matthew
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4 Answers4

14

Go to vim and run:

:echo $VIMRUNTIME

Usually the value will be something like:
/usr/share/vim/vim72
Then edit (using root) the file /usr/share/vim/vim72/filetype.vim
Search for bashrc.
You will find a line that looks like this:

au BufNewFile,BufRead .bashrc*,bashrc,bash.bashrc,.bash_profile*,.bash_logout*,*.bash,*.ebuild call SetFileTypeSH("bash")


Edit the line and add your filename (.bash_aliases) to it.

That's it, now it should work.

Iftach Bar
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  • Perfect! This solved my problem. – Matthew Oct 07 '10 at 19:39
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    You shouldn't edit the vim distribution (files in /usr/share/vim). Your changes may be overwritten when you update vim. Instead, you should create your own script that does the same (or adding that line to your vimrc would do it). – idbrii Sep 09 '11 at 19:13
13

The answer is in this: vimdoc - setf but to throw you a bone, if you just want the syntax & syntax highlighting to work you can do:

  :setf bash

Another possiability which I just realized when I was answering another VIM question was that you could also add this section to your .vimrc file and it would automatically enable syntax highlighting for the .bash_aliases file everytime you edit it without needing a modeline or having to manually type in :setf bash each time you open the file.

if has("autocmd")
  augroup bashalias
    autocmd BufRead,BufNewFile .bash_aliases set filetype=bash
  augroup END
endif

Thirdly as Mugen Kenichi below in the comments points out, you could also add a modeline to the .bash_alias file also as such:

# vim: set filetype=bash:
Pharaun
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  • and/or add a modeline to your bash file http://vimdoc.sourceforge.net/htmldoc/options.html#modeline – matthias krull Aug 20 '10 at 19:17
  • @Mugen Kenichi - Oh good catch there! I never use modeline but I've seen it in files before. – Pharaun Aug 20 '10 at 19:43
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    This really helped me a lot, thanks guys. One thing I had to do, was I had to set the filetype to sh instead of bash, but I should probably just find a good bash vim file instead, as that would solve my problem as well :p – icco Sep 28 '10 at 17:44
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    My VIM 7.3 from cygwin also does not know about "filetype=bash". If you read through filetype.vim, "sh" is used as filetype for all other bash patterns. – Bogdan Calmac Oct 31 '13 at 18:42
  • Despite the fact I think the `.vimrc` edit is more reliable, VIM modelines are just awesome! Thanks. – 4wk_ May 09 '18 at 14:17
1

Add the following line to ~/.vimrc (create it if it does not exist).

au BufNewFile,BufRead .bash_aliases call SetFileTypeSH("bash")
Rudger
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0

Follow up on @Pharaun's answer for vim 8 and multiple alias files. In order to get the highlighting correct there were two settings I had to do. First in the new .bash_aliases file:

# vim: set filetype=bash

As well as the check in my .vimrc

if has("autocmd")
  augroup bashalias
    autocmd BufRead,BufNewFile *_aliases set filetype=sh
  augroup END
endif

Notice the filetype is sh as well as the * wildcard for multiple filenames.

Not sure why both these settings are needed. I tried to use just one setting but both combos were needed for the highlighting to be correct.

Shadoath
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  • I use vim 8 but I don't need the modeline (# vim ...). Just set the filetype to sh in my vimrc does the trick. Somehow the filetype should not `bash` but just `sh`. – Jinghao Shi May 15 '18 at 00:11