Other Commands

Technologies that only have a few commands notes have been bunched together here.

Atom

  • Shift + Cmmd + M This gives a markdown viewer so you can see the formatting of your markdown code.

Eclipse

Class Paths

  • The PATH environment variable is a series of directories in which Windows looks fro programs. It allows you to be able to conveniently run the executables from any directory without having to type the full path of the command.

  • N.B. Windows accepts both / and \ as folder separators within a path, and works just as well within PATH.

  • N.B. Windows treats consecutive folder separators as one logical separator, i.e. C:\FOLDER\\ == C:\FOLDER\

  • To check is PATH already contains a pathm we need a way to convert any given path into a canonical form, due to the reasons above (and further syntax points). To do this the ~s modifier is used to remove enclosing quotes. We use FINSTR regular expressions to classify a path as wither qualified or relative. A normal qualified path must start with <letter>:<separator>, whilst a UTC path always starts <letter>:<separator>.

  • The Uniform Naming Convention (UNC) Path defines the location of a resourse on a network. it works on a network level rather than an operating system level, and so has to have a global standard.

  • Mapped drives are specific to certain computers.

Commands

IntelliJ

  • cmmd + backspace : deletes the line the cursor is on.

To debug a server

  1. wlp/bin ./server debug <server_name>
  2. Look for 'Attach to process' and select the relevent option

DB2

Error Messages

204 - Missing column

bash and zsh

  • source

  • . The above two commands are the same except source always searches the current directory first before the rest on the $PATH.

  • bash and exit Enters and then leaves bash.

  • PS1='\W# ' Use this to change what information appears in the terminal prompt.

The following to be out in order when I have time:

  • To return the shell that you are using:
echo $SHELL

-e: Enable interpretation of backslash escape sequences

  • source activate iaml source deactivate iaml Use this to activate the vm (for Edinburgh ML project)

  • mv

    Change the name of a directory

  • conda info -e

    See what anaconda virtual environment I am in

  • unzip file.zip -d

    Unzip to a specific folder

Jenkins

  • agent
    • docker -

Gradle

Notes

The Gradle Wrapper considtd of four files:

  • /gradlew
  • /gradlew.bat
  • /gradle/wrapper/gradle-wrapper.jar
  • /gradle/wrapper/gradle-wrapper.properties

…and can be further optimised with...

  • /build.gradle

Commands

Ruby

rvm use ruby-2.4.2 —default

Specify a specific version of Ruby to use.

NodeJs

SQL

Notes

tty is a Unix commadn that displays to standard output the name of the terminal connected to standard input. These are commonly used as a way to get access to the computer to fix things without having to log into.

Slack

  • ctrl + backtick

Moves focus to the next section.

  • cmmd + K

Quick switcher.

  • cmmd + /

See a list of all the shortkeys.

Chrome

  • cntrl + shift + delete

Delete history.

Liberty

server is the command used to action Liberty commands from the command line.

*

server package <server_name> --archive=<package_file_name.zip> --include=all

Maven

To use maven in a session:

  1. Set the JAVA_HOME variable:
which java
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
  1. Add maven to the path
export PATH=/opt/apache-maven-3.5.4/bin:$PATH

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