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make_a_file_executable

Make a file Executable

2016



Unlike Windows, Linux does not have files that are executable, all files can have this attribute. So for example, I have a python file that is just a text file, and I will to be able to run this from the command line, If I look at the file using ls -al:

  ls -al


I will see something like this:

  "-rw-r--r-- 1 pi pi 4452 Jul 25 17:46 40x2_LCD.py"


The permissions for this file are:

  "-rw-r--r--"


This file has three sets of permissions:

  User -rw  |  Group -r-  |  Others r--
  
  where r is read - w is write - x is execute



I will cover permissions in another section, to give this file 'everything' use the following:

  chmod 777 40x2_LCD.ph


If we look at the permissions now by using:

  ls -al


We will see:

  "-rwxrwxrwx"


Now we can execute this file (assuming it contains something valid that is executable)

  ./40x2_LCD.ph


The file will now be executed.

make_a_file_executable.txt · Last modified: 2017/02/28 18:00 (external edit)