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How to Clear Your system Cache in Ubuntu 18.04 and Linux mint or Debian Linux we all are need to delete cache once a month . Clean Cache is good for system . in this article i will show you how to clean system cache this is very easy  you just follow few's step. Step 1 : open a terminal ( Ctrl + Alt + t ) Step 2 : copy and paste and press enter those 3 Linux Command in your terminal one by one . sudo add-apt-repository ppa:gerardpuig/ppa after press enter you have o press again enter sudo apt update sudo apt install ubuntu-cleaner Step 3 : Now open Ubuntu Cleaner which from menu or by search you install now. step 4 : Click All which you want to delete.  Thank you.

                   How To Turn on WiFi On Ubuntu Linux or Linux Mint Turn On and turn Off WiFi is very easy.  You need to Follow few step. Lets's start step 1 : open your setting step 2 :  click on WIFI option   Step 3 : go top of right side corner and click on turn on button if you click on turn on button then your WIFI will be on.

              How to Know Bluetooth on or of on your Linux  Machine This is very simple to know is your Bluetooth on or off using Terminal any kind of Linux like ubuntu or Linux mint or Debian Linux etc. step 1 : open a terminal and type or paste this command                sudo apt install tlp then press enter and type your password . the type y and press enter button. then automatic this software install on your laptop or desktop machine. step 2 : check your Bluetooth on or off. Type on this terminal Bluetooth and press enter that will show you your Bluetooth current status . My machine bluetooth is on that is why show result on. thank you. i hope this Article will help you.

                    How To Turn on Bluetooth without using Terminal on Linux  Turn on Bluetooth without  using terminal is very easy just you have to know your Linux system setting very well . Step 1: go your setting option Step 2 : Choose Bluetooth Option Step 3 : Look at top of Right side Corner Click on On button If You want to OFF Bluetooth the press Off Button . this is very easy. thank you. i hope This Article help you .

Different Type of Pattern Program ( Automata Program ) in C 1) Write a Automata program using 0 and 1  000 0    0 0    0 0    0  000 Code : #include<stdio.h> void main(){ int i,j,rows,cols; printf("enter rows and cols : "); scanf("%d%d",&rows,&cols); for(i=1;i<=rows;i++){ for(j=1;j<=cols;j++){ if((i==1 || i==rows) && (j==1 || j==cols)) printf(" "); else if((i==1 || i==rows) || (j==1 || j==cols)) printf("0"); else printf(" "); } printf("\n"); } } Output : 2) Write a Automata program using 0 and 1 10101 01010 10101 01010 10101 Code : #include<stdio.h> int main(){ int i,j,n; printf("enter a number : "); scanf("%d",&n); for(i=1;i<=n;i++){ for(j=1;j<=n;j++){ if((i%2==0 || j%2==1)&&(i%2==1 || j%2==0)) printf("1"); else printf("0"); } printf("\n"); } } Output :

       Different Type of Pattern Program (Automata Program) in C 1) Write a Automata Program using 0 and 1  0     0   111   111   111 0      0 code : #include<stdio.h> void main(){ int i,j,rows,cols; printf("enter rows and cols : "); scanf("%d%d",&rows,&cols); for(i=1;i<=rows;i++){ for(j=1;j<=cols;j++){ if((i==1 || i==rows) && (j==1 || j==cols)) printf("0"); else if((i==1 || i==rows) || (j==1 || j==cols)) printf(" "); else printf("1"); } printf("\n"); } } Output :  2) Write a Automata Program using 0 and 1 1      1   111   111   111 1     1 Code :   #include<stdio.h> void main(){ int i,j,rows,cols; printf("enter rows and cols : "); scanf("%d%d",&rows,&cols); for(i=1;i<=rows;i++){ for(j=1;j<=cols;j++){ if((i==1 || i==rows) && (j==1 || j==cols)) printf("1"); else if

Differnce between Verification and Validation .               Verification               Validation Are we building the system right? Are we building the right system? Verification is the process of evaluating products of a development phase to find out whether they meet the specified requirements . Validation is the process of evaluating software at the end of the development process to determine whether software meets the customer expectations and requirements . The objective of Verification is to make sure that the product being develop is as per the requirements and design specifications . The objective of Validation is to make sure that the product actually meet up the user’s requirements, and check whether the specifications were correct in the first place . Following activities are involved in Verification : Reviews, Meetings and Inspections . Following activities are involved in Validation : Testing like black box testing, white box testing, gra