How to delete a Windows Service

To delete a windows Service there is a practical and easy command.
 Open a command prompt and digit the command:


sc delete ServiceName

ServiceName  is the name you see when you open the property tab of a service in Windows.

NOTE

If  "sc delete ServiceName" does not succeed it means you don't have enough privileges to execute this command. In this case open the command prompt as administrator and retry.

Make iso file from a folder on linux (command line)

mkisofs -lJR -o output_image.iso directory_name

Source:

unix.stackexchange.com 

Add a new line to a file (ANT)

How do you append lines in ANT?

Two basic things to know:

• echo task
• The ant property ${line.separator}

        <echo message="First line. ${line.separator}" file="test_file.txt"/>
        <echo message="Second line ! ${line.separator}" file="test_file.txt" append="true"/>

Notice the "append" attribute on the second echo!

That's all!

Source:
https://ant.apache.org/manual/Tasks/echo.html

Meet Plan9

An interesting look into Plan9. I hope the surviving projects will be successful someday.
A series on the Plan9 fundamentals:


http://pub.gajendra.net/2016/05/plan9part1

R and Matlab

Looking for a comparison between R and Matlab I found this reference.
It is good and free so I like to recommend it!

http://www.math.umaine.edu/~hiebeler/comp/matlabR.html

Bash: How to change recursively owner and group of files and dirs

Sometimes comes in hand to change recursively the owner and group for files in a directory. How to do this in bash?

With this command:

find /starting/path -user "original_owner"  -exec chown someuser:somegroup {} +

You can omit ":somegroup" if you don't want to change the group of the files/folder
For example to change from root to foo of foogroup in the folder /var/lol  use the command:

find /var/lol -user "root"  -exec chown foo:foogroup {} +

NOTE: You must be root to change the ownership of a root-owned file! 

Source

superuser

SSH and login prompt

If you log via SSH and you get a prompt showing only the bash version it means that .bashrc wasn't sourced. SSH sources .bash_profile not .bashrc.
To solve this problem,  create/update .bash_profile with the   following content :

if [ -f ~/.bashrc ]; then
  . ~/.bashrc
fi

 This is the way to go for docker too :)

Source
http://stackoverflow.com/