How to Use the Ls Command on Linux or Mac OS X to Sort Files based on Second in the Timestamp
Here is the one liner.
ls -lhtTr
It will output something like
total 24152
-rw-rw-r-- 1 sean staff 1.0M May 4 14:31:42 2019 4c2caf52cb084ea39a6a65a0e68ee382
-rw-rw-r-- 1 sean staff 1.0M May 4 14:31:44 2019 76eeeea5d...
Written by Sean Behan on 05/04/2019
Using to_sentence method on an Array in Ruby on Rails
Member.all.collect {|member| member.firstname}.to_sentence
=> "Alex, Andy, and Sean"
Declare separator and the connector
Member.all.collect {|member| member.firstname}.to_sentence(
:connector => "and last but not least,",
:skip_last_comma => tr...
Written by Sean Behan on 06/17/2012
Extract Domain Names From Links in Text with Postgres and a Single SQL Query
This query and pattern will return urls in text all within a single SQL query.
select substring(column_name from '.*://([^/]*)') as domain_name from table_name;
And here it is in a larger query, say for retrieving page view counts for referrers.
...
Written by Sean Behan on 11/23/2013
Git Untrack Already Tracked Files
To remove files that are currently being tracked by git, you have to remove them from the "cache". Note, doing this will NOT delete the file on your local machine. It will still be there but not be tracked.
git rm -r --cached supersecretpasswords.txt
Yo...
Written by Sean Behan on 06/17/2012
Trouble Using Attr_Accessor in Rails Models and Forms
You might use the attr_accessible method to create getters and setters for a class that has attributes which don't map directly to corresponding fields in a database. For example let's take the scenario where you are processing a credit card transaction. ...
Written by Sean Behan on 06/17/2012
