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+ | ===== Hello World in C ===== | ||
+ | |||
+ | - First of all we need to install gcc: GNU Compiler Collection | ||
+ | - At the beginning, update the packages by typing <code> apt-get update </code> | ||
+ | - Subsequently install the compiler by typing <code> apt-get install gcc </code> | ||
+ | - Now create and open a .c file using nano editor <code> nano hello.c </code> | ||
+ | - Type following code: <code c hello.c >#include <stdio.h> | ||
+ | int main() | ||
+ | { | ||
+ | printf("Hello World"); | ||
+ | return 0; | ||
+ | } | ||
+ | </code> | ||
+ | - Save it using Ctrl + O (German keyboard: Strg + O) | ||
+ | - Exit using Ctrl + X (German keyboard: Strg + X) | ||
+ | - Compile the program using gcc <code> gcc hello.c -o hello </code> | ||
+ | - Type <code> ls -l </code> | ||
+ | - The created file has rights 644. Change it to 755 <code> chmod 755 hello </code> | ||
+ | - Type <code> ./hello </code> to run the program | ||
+ | |||
+ | ===== Hello World shell script ===== | ||
+ | |||
+ | - Create and open file using nano editor <code> nano helloBash </code> | ||
+ | - Type following code: <code bash helloBash > | ||
+ | #!/bin/bash | ||
+ | echo "Hello World" | ||
+ | </code> | ||
+ | - Save it using Ctrl + O (German keyboard: Strg + O) | ||
+ | - Exit using Ctrl + X (German keyboard: Strg + X) | ||
+ | - Type <code> ls -l </code> | ||
+ | - The created file has rights 644. Change it to 755 <code> chmod 755 helloBash </code> | ||
+ | - Type <code> ./helloBash </code> to run the program | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ===== Hello World in Python ===== | ||
+ | |||
+ | - First of all we need to install Python | ||
+ | - At the beginning, update the packages by typing <code> apt-get update </code> | ||
+ | - Subsequently install Python by typing <code> apt-get install python </code> | ||
+ | - Create and open a .py file using nano editor <code> nano helloPt.py </code> | ||
+ | - Type following code: <code python helloPt.py> print "Hello World" </code> | ||
+ | - Save it using Ctrl + O (German keyboard: Strg + O) | ||
+ | - Exit using Ctrl + X (German keyboard: Strg + X) | ||
+ | - Run the program using <code> python helloPt.py </code> | ||
+ | |||