How to cast a string of comma separated numbers into an array of integers for Postgres
If you have an string of numbers like
"1,2,3"
and you want to turn it into an array of integers you need to cast it into an integer array type.
"{1,2,3}"::int[]
This is commonly used together when grabbing a set using the ANY clause.
sele...
Written by Sean Behan on 09/26/2013
Linux Disk Usage Command Recursive
It's short and sweet!
du -hs *
If you run this command it will tell you the sizes of all the files and folder in the current directory.
The `-h` flag is for human readable format and the `-s` will give you the size for each file or directory.
...
Written by Sean Behan on 03/07/2017
Gem Information with Gem List
If you want to get version information about a gem the easiest way to do it is with this command
gem list
For example
gem list activemerchant
will output the activemerchant versions I have installed. You can pass only part of the name like
gem list ...
Written by Sean Behan on 06/17/2012
How to Time Piped *nix Commands
If you want to time how long a piped bash command take, use the `time` command followed by your commands in parens like so..
time (ls -lha | wc -l)
Written by Sean Behan on 12/11/2017
Natural Dog Training
Natural Dog Training uses Wordpress to run a blog and content management system.
Custom design, theme and plugin development
Written by Sean Behan on 06/17/2012
