Cloud Network

Monday, May 1, 2017

Basic Commands of Linux

Cloud Network May 01, 2017

Ubuntu

Redhat Linux Administration (Full Course, Training & Tutorial)

Step1:- How to Check the Present Working Directory (pwd)
# pwd

Step2:- How to show the contents of a directory (folder)
# ls

Step3:- How to See Full Permission of a directory (folder)
# ls -l

Step4:- How to See all contents including hidden files of a directory (folder)
# ls -a

Step5:- How to See Tree Structure of nested directories
# ls -R /opt

Step6:- How to See a file starting from i letter
# ls i*

Step7:- How to See a file whose length is 8 characters
# ls ????????

Step8:- How to create a file
# cat > itcloudnet1

Step9:- How to see file content
# cat itcloudnet1

Step10:- How to append a file
# cat >> itcloudnet1
# cat itcloudnet1 itcloudnet2 >> itcloudnet3
# cat itcloudnet3

Step11:- How to create a file using touch command
# touch cloudnetwork cloudnetwork1 cloudnetwork2

# ls

Step12:- How to creating a single directory
# mkdir ubuntu
# ls

Step13:- How to creating multiple directory
# mkdir ubuntu ubuntu1 ubuntu2

# ls

Step14:- How to create nested directories
# mkdir -p user1/user2/user3
# cd user1/
# ls
# cd user2/
# ls

Step15:- How to see the tree structure
# ls -R user1/

Step16:- How to change a directory
# cd ubuntu
# cd ..
# cd ../..
#cd -
# pwd
# cd
# pwd

Step17:- How to remove files
# rm itcloudnet
# ls

Step18:- How to remove an empty directory
# rmdir ubuntu
# ls

Step19:- How to remove a directory
# rm -rf ubuntu
# ls

Step20:- How to copy files
# cp ubuntu ubuntu1
# cat ubuntu1

Step21:- How to copy folders
# sudo cp -r ubuntu2 /home/username/
# ls /home/username

Step22:- How to rename directories and files
# mv ubuntu3 u4
# ls

Step23:- How to move directories and files
# sudo mv ubuntu2 /opt
# ls
# cd /opt

Step24:- How to search a word from single or multiple file's
# grep itcloudnet /etc/passwd /etc/group /etc/shadow

# cat /etc/passwd | grep itcloudnet

Step25 :- How to see the type of file

# file *

Step26 :- How to view the date

# date

# date -s"tus may 02 05:25:18 ist 2017"

Step27 :- How to view the calendar for completed year

# cal 05 2017

Step28 :- How to take help of command

# man mkdir

Step29 :- How to see the content screen wise

# ls -l /bin | less

Sunday, April 16, 2017

What is Python Programming ?

Cloud Network April 16, 2017

Python

Python is an Interpreted Language, Object-Oriented Programming Language, Powerful High-Level Programming Language with Dynamic Semantics Created by Guido Van Rossum.

Python supports modules and packages, which encourages program modularity has a design philosophy which emphasizes code readability and code reuse (notably using whitespace indentation to delimit code blocks rather than curly braces or keywords), and a syntax which allows programmers to express concepts in fewer lines of code than possible in languages such as C++ or Java.

Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together.

Python's simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance.

The Python interpreter and the extensive standard library are available in source or binary form without charge for all major platforms, and can be freely distributed.