How to use irssi

# Connect to irc server
/connect irc.freenode.com

# Join a channel
/join #hackerspacesg

# List users in channel
/names

# Switch to next window
CTRL + n

# Switch to previous window
CTRL + p

Tips to use mobileterminal on iPhone

Tips

Hide the Keyboard

Tap twice quickly on the screen to hide the keyboard. Repeat to bring it back.

Control Characters

You can send a control-C by pressing the "bullet" key (First press ".?123", then "#+=", then the circle on the middle right), then press the C key. This can be useful when you want to escape out of a long running program such as ping. Control-C can also be accessed with a short Up-Right and Control is a short Down-Right swipe, after which the cursor will turn highlight red, from here press any character q, x, c, A to complete or the delete button to exit Control mode.

Escape is control-[ or a short Up-Left swip, which may come in handy with vi. Tab is control-I or a short Down-Left swip (yay tab completion).

Swipe Controls

Swipe Type	Direction	Action
Short	Up-Right	Control-C
Short	Down-Right	Control-
Short	Up-Left	Esc
Short	Down-Left	Tab
Short	up/down/left/right	arrow keys (respectively)
Long	Up	None (functions as up-arrow)
Long	Down	Enter
Long	Left	None
Long	Right	None
Two Finger	Up	Config
Two Finger	Down	Hide Keyboard
Two Finger	Left	Page-Up/Next
Two Finger	Right	Page-Down/PREV

None of the Two Finger Swipes seem to work right in 2.0 firmware

Multiple Terminals

Terminal comes with four terminal windows. Tap on the battery icon to go right, tap directally on the time to go left, and tap on the carrier name (AT&T or iPod) to crash Terminal (or do a really quick killall Terminal depending on how you look at it).

Cucumber feature template

Feature:title

In order to [Business Value]
As a [Role]
I want to [Some Action]

Do not use Ruby's Enumerable find() method in Rails

According to ruby doc.

find	enumObj.find {| obj | block } -> anObject or nil
	Synonym for Enumerable#detect .

However if you ever try to use Enumerable#find in Rails, you'll get a "cannot find object without object id" error.

Better to use Enumerable#detect

The problem with using Rail's try() method

@jasonong             Try not to use Rail's try() method; makes debugging
                       difficult coz error not thrown.

Git: creating, pushing & deleting remote branches

I work on multiple machines. Need temporary remote branches that I can sync them with.

# create remote branch from a local branch
git push origin LOCAL_BRANCH:refs/heads/REMOTE_BRANCH

# push commits to remote branch
git push origin LOCAL_BRANCH:REMOTE_BRANCH

# pull commits from remote brance
git pull origin REMOTE_BRANCH

# delete remote branch
git push origin :REMOTE_BRANCH

Hidden features of Ruby

http://stackoverflow.com/questions/63998/hidden-features-of-ruby