Excluding directory from grep

For some reason, I can never remember how to do this.

If you ever want to grep for something but leave out a particular directory, use the --exclude-dir=DIR

So if I wanted to search the current directory for the string img, but don’t want to look in the directories tmp or log.

grep -r --exclude-dir=log --exclude-dir=tmp "img" ./

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Excluding directory from grep

Notes: basic psql commands

As I’m learning postgresql to develop with Heroku, here are my notes on some of the basic commands that are necessary to move around within the command-line interface.

Logging in under the postgres user (this would be like root in mysql)
psql -U postgres -h localhost

To list all databases:
\list

To connect to a database (similar to use database in mysql):
\c the_database

To list tables in that database:
\d

To list the columns in a particular table:
\d table_name

To view all rows in a given connected table (just the standard sql command):
select * from the_table

To quit out of the psql command-line utility:
\q

Notes: basic psql commands

Notes: Adding themes to rails app

To add themes to a rails app

  • Drop respective css and javascript files into appropriate directory under vendor/assets/.
    Note: Files should have unique name (I name them after the theme so flatty-theme/css/style.css simply becomes flatty.css.
  • Add the following code to your config/application.rb under # add custom validators path in the Application class

    config.assets.paths << "#{Rails.root}/vendor/assets/*"
    config.assets.paths << "#{Rails.root}/vendor/assets/fonts"
    config.assets.paths << "#{Rails.root}/vendor/assets/stylesheets"
  • Adjust whatever views you’re using to use the appropriate classes in your theme

…And that’s it!

Notes: Adding themes to rails app