Today I Learned

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List Available File Types For Ack

The ack utility allows you to filter the searched files based on file type. If you'd like to know all of the file types available, you can use the --help=types flag. This will include file types you've specified in your .ackrc file.

Here is a sample of some of the output.

$ ack --help=types
    --[no]css          .css .less .scss
    --[no]dart         .dart
    --[no]delphi       .pas .int .dfm .nfm .dof .dpk .dproj .groupproj .bdsgroup .bdsproj
    --[no]elisp        .el
    --[no]elixir       .ex .exs
    --[no]erlang       .erl .hrl
    --[no]fortran      .f .f77 .f90 .f95 .f03 .for .ftn .fpp
    --[no]go           .go
    --[no]groovy       .groovy .gtmpl .gpp .grunit .gradle
    --[no]haskell      .hs .lhs
    --[no]hh           .h
    --[no]html         .html .mustache .handlebars .tmpl
    --[no]jade         .jade
    --[no]java         .java .properties
    --[no]js           .js

See man ack for more details.