robbyrussell

# Was asked how I keep  my zshrc config sync'd between my computers with Dropbox

# Add a new directory in your Dropbox (or use an existing one)
mkdir -p ~/Dropbox/ohmyzsh

# move existing file to Dropbox
mv ~/.zshrc ~/Dropbox/ohmyzsh/zshrc

# symlink file back to your local directory
ln -s ~/Dropbox/ohmyzsh/zshrc ~/.zshrc

scy

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

• From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
• That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

obstschale

Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Hint: I also mad an octave docset for Dash: https://github.com/obstschale/octave-docset

Basics

kevin-smets

Default

Powerlevel10k

davegurnell

Error Handling in Scala

Scala does not have checked exceptions like Java, so you can't do soemthing like this to force a programmer to deal with an exception:

public void stringToInt(String str) throws NumberFormatException {
  Integer.parseInt(str)
}

afolarin

#Container Resource Allocation Options in docker-run

now see: https://docs.docker.com/engine/reference/run/#runtime-constraints-on-resources

You have various options for controlling resources (cpu, memory, disk) in docker. These are principally via the docker-run command options.

##Dynamic CPU Allocation -c, --cpu-shares=0
CPU shares (relative weight, specify some numeric value which is used to allocate relative cpu share)

bjorgvino

Remove osxfuse if installed via homebrew:
> brew uninstall osxfuse

Install osxfuse binary and choose to install the MacFUSE compatibility layer:
http://sourceforge.net/projects/osxfuse/files/latest/download?source=files

Reboot (optional but recommended by osxfuse)

Install ntfs-3g via homebrew:
> brew update && brew install ntfs-3g

myusuf3

To remove a submodule you need to:

• Delete the relevant section from the .gitmodules file.
• Stage the .gitmodules changes git add .gitmodules
• Delete the relevant section from .git/config.
• Run git rm --cached path_to_submodule (no trailing slash).
• Run rm -rf .git/modules/path_to_submodule (no trailing slash).
• Commit git commit -m "Removed submodule "
• Delete the now untracked submodule files rm -rf path_to_submodule

Arachnid

/**
 * Base contract that all upgradeable contracts should use.
 * 
 * Contracts implementing this interface are all called using delegatecall from
 * a dispatcher. As a result, the _sizes and _dest variables are shared with the
 * dispatcher contract, which allows the called contract to update these at will.
 * 
 * _sizes is a map of function signatures to return value sizes. Due to EVM
 * limitations, these need to be populated by the target contract, so the
 * dispatcher knows how many bytes of data to return from called functions.

jadlr

defmodule PushButtonHandleEvents do
  @behaviour :gen_statem

  @name :pushbutton_statem

  # Client API

  def start do
    :gen_statem.start({:local,@name}, __MODULE__, [], [])
  end