UNIX COMMAND

1. Find the current time and date.

[bgc@localhost ~]$ date

Thu Aug 23 04:54:01 EDT 2018

[bgc@localhost ~]$

2. Create a blank file.

[bgc@localhost ~]$ touch aniket.txt

[bgc@localhost ~]$

3. Create a file and write some sentences on the file.

[bgc@localhost ~]$ cat>file1.txt

today is thursday

I am a student

Bhairab Ganguly College

[bgc@localhost ~]$

4. Display the content of the file file1.txt

[bgc@localhost ~]$ cat file1.txt

today is thursday

I am a student

Bhairab Ganguly College

[bgc@localhost ~]$

5. Append some lines in a text file.

[bgc@localhost ~]$ cat>>file1.txt

tomorrow is friday

[bgc@localhost ~]$ cat file1.txt

today is thursday

I am a student

Bhairab Ganguly College

tomorrow is friday

[bgc@localhost ~]$

6. Create a directory or folder.

[bgc@localhost ~]$ mkdir Aniket

[bgc@localhost ~]$

7. Display all files and directories under the current directory.

[bgc@localhost ~]$ dir

10.sh~      7.sh~      even   nelash.sh

143.cpp~      8a.sh      evenoddchecking.sh   nelash.sh~

144.cpp~      8a.sh~      evenoddchecking.sh~  nelash.txt

145.cpp~      8.sh      f1   nelash.txt~

146.cpp~      8.sh~      f2.cpp~   odd

147.cpp~      9.sh~      f8.cpp~   p1.cpp~

148.cpp.cpp~  a      file1.txt   p2.cpp~

149.cpp~      A\ K\ PATWA\ 9564\ BGC  file.c~   p3.cpp~

150.cpp~      aman~      file.txt   paddy

151.cpp~      aman2~      file.txt~   paddy1.txt

152.cpp~      Aniket      final.c   Pictures

153.cpp~      aniket.txt      first.c~   Public

154.cpp~      aniket.txt~      F_to_c.cpp~   puli1.c~

1.sh      archie.sh      HMS.cpp~   rajdeep.doc

1.sh~      archie.sh~      joy   rajdeep.txt

2.sh      Archisman.sh      joy1.sh   rajdeep.txt~

2.sh~      Archisman.sh~      joyblank.sh   reverse.sh

3.sh      Archisman.txt      joyblank.sh~   reverse.sh~

3.sh~      Archisman.txt~      joymarks.sh   sdsir.c~

4.sh      arm.sh      joyword.sh   source.txt

4.sh~      arm.sh~      joyword.sh~   student1.txt

5.sh      assignment1.sh      joyyy.sh   student1.txt~

5.sh~      assignment1.sh~      joyyy.sh~   t19.txt

6a.sh~      bubble.c~      km_to_mile.cpp~   t2.txt

6b.sh~      checking.sh      linear.sh   t2.txt~

6c.sh~      Debayan      linear.sh~   Templates

6.sh      Desktop      Music   triangle.txt~

6.sh~      destination.txt      nealash2.txt   Untitled\ Folder

7a.sh~      Documents      nelash2.sh   Videos

7b.sh~      Downloads      nelash2.sh~   vowelcheck.txt

7c.sh~      DtoB.sh      nelash3.sh

7.sh      DtoB.sh~      nelash3.sh~

[bgc@localhost ~]$

8. Display all files and directories under the current directory.

[bgc@localhost ~]$ ls

10.sh~        7.sh~      even nelash.sh

143.cpp~      8a.sh      evenoddchecking.sh nelash.sh~

144.cpp~      8a.sh~      evenoddchecking.sh~ nelash.txt

145.cpp~      8.sh      f1 nelash.txt~

146.cpp~      8.sh~      f2.cpp~ odd

147.cpp~      9.sh~      f8.cpp~ p1.cpp~

148.cpp.cpp~  a      file1.txt p2.cpp~

149.cpp~      A K PATWA 9564 BGC  file.c~ p3.cpp~

150.cpp~      aman~      file.txt paddy

151.cpp~      aman2~      file.txt~ paddy1.txt

152.cpp~      Aniket      final.c Pictures

153.cpp~      aniket.txt      first.c~ Public

154.cpp~      aniket.txt~      F_to_c.cpp~ puli1.c~

1.sh          archie.sh      HMS.cpp~ rajdeep.doc

1.sh~         archie.sh~      joy rajdeep.txt

2.sh          Archisman.sh      joy1.sh rajdeep.txt~

2.sh~         Archisman.sh~      joyblank.sh reverse.sh

3.sh          Archisman.txt      joyblank.sh~ reverse.sh~

3.sh~         Archisman.txt~      joymarks.sh sdsir.c~

4.sh          arm.sh      joyword.sh source.txt

4.sh~         arm.sh~      joyword.sh~ student1.txt

5.sh          assignment1.sh      joyyy.sh student1.txt~

5.sh~         assignment1.sh~     joyyy.sh~ t19.txt

6a.sh~        bubble.c~      km_to_mile.cpp~ t2.txt

6b.sh~        checking.sh      linear.sh t2.txt~

6c.sh~        Debayan      linear.sh~ Templates

6.sh          Desktop      Music triangle.txt~

6.sh~         destination.txt     nealash2.txt Untitled Folder

7a.sh~        Documents      nelash2.sh Videos

7b.sh~        Downloads      nelash2.sh~ vowelcheck.txt

7c.sh~        DtoB.sh      nelash3.sh

7.sh          DtoB.sh~      nelash3.sh~

[bgc@localhost ~]$

9. Details of all processes that are currently executing

[bgc@localhost ~]$ ps

 PID   TTY       TIME CMD

2807 pts/1    00:00:00 bash

2889 pts/1    00:00:00 ps

[bgc@localhost ~]$

BASIC DOS COMMAND

1.create a sub directory NEW and a sub directory EXAM under it.

C:\Users\cs-14>md NEW

C:\Users\cs-14>cd NEW

C:\Users\cs-14\NEW>md EXAM

C:\Users\cs-14\NEW>cd EXAM

2. create two files TEST1 and TEST2 in a sub directory EXAM.

C:\Users\cs-14\NEW\EXAM>copy con TEST1

CMSA^Z

       1 file(s) copied.

C:\Users\cs-14\NEW\EXAM>copy con TEST2

MTMG^Z

       1 file(s) copied.

3.copy the contain of TEST1 into TEST3.

C:\Users\cs-14\NEW\EXAM>copy TEST1 TEST3

       1 file(s) copied.

4. Delete the file TEST1.

C:\Users\cs-14\NEW\EXAM>del TEST1

5.Rename the file TEST3 toTEST4.

C:\Users\cs-14\NEW\EXAM>ren TEST3 TEST4

6.Display the file TEST1.

C:\Users\cs-14\NEW\EXAM>edit TEST1

7.delete the folder EXAM.

C:\Users\cs-14\NEW\EXAM>del TEST2

C:\Users\cs-14\NEW\EXAM>del TEST4

    

C:\Users\cs-14\NEW\EXAM>cd..

C:\Users\cs-14\NEW>rd EXAM

8.Delete the folder NEW.

C:\Users\cs-14\NEW>cd..

C:\Users\cs-14>rd NEW

C:\Users\cs-14>

LCM OF TWO NUMBERS

#include<stdio.h>

void main()

{

 int a,b,i,l;

 printf("enter the first element");

 scanf("%d",&a);

 printf("enter the second element");

 scanf("%d",&b);

 for(i=1;;i++)

 {

  if(i%a==0&&i%b==0)

  {

   l=i;

   break;

  }

 }

 printf("%d",l);

}

GCD OF TWO NUMBERS C LANGUAGE CODE

Program code:

#include<stdio.h>

void main()

{

 int m,n,i,g;

 printf("enter the first element");

 scanf("%d",&m);

 printf("enter the second element");

 scanf("%d",&n);

 for(i=1;i<=m;i++)

 {

  if(m%i==0&&n%i==0)

  {

   g=i;

  }

 }

 printf("%d",g);

}

PASCAL'S TRIANGLE CODE USING C LANGUAGE

#include<stdio.h>

void main()

{

 int n,i,j,a[30][30];

 printf("enter the number of line");

 scanf("%d",&n);

 for(i=0;i<=n;i++)

 {

  for(j=0;j<=i;j++)

  {

   if(j==0||i==j)

   {

    a[i][j]=1;

   }

   else

   {

    a[i][j]=a[i-1][j]+a[i-1][j-1];

   }

  }

 }

 for(i=0;i<n;i++)

 {

  for(j=0;j<(n-i-1);j++)

  {

   printf(" ");

  }

  for(j=0;j<=i;j++)

  {

   printf("%d",a[i][j]);

  }

  printf("\n");

 }

}

FLOY'D TRINAGLE CODE IN C LANGUAGE

#include<stdio.h>

void main()

{

                int i,j,k,l,n;

                printf("enter the total number of line");

                scanf("%d",&n);

                l=1;

                for(i=1;i<=n;i++)

                {

                                for(j=1;j<=(n-i);j++)

                                {

                                                printf(" ");

                                }

                                for(k=1;k<=i;k++)

                                {

                                                printf("%d ",l++);

                                }

                                printf("\n");

                }

}

Get input using inputbox, and then check it is positive or negative or zero in vb6,print using msgbox (visual basic)

Private Sub Form_Load()

Dim a As Integer

a = Int(InputBox("enter a number"))

If a = 0 Then

MsgBox (a & "is zero")

ElseIf a > 0 Then

MsgBox (a & "is positive")

Else

MsgBox (a & "is nagetive")

End If

 End Sub

Get input using inputbox, and then sum of digits (2digit) and display using msgbox in vb6(visual basic)

Private Sub Form_Load()

Dim a, b, c As Integer

a = Int(InputBox("enter a number"))

b = a Mod 10

c = a \ 10

d = b + c

MsgBox (d)

End Sub

Get input using inputbox, and then sum of two numbers and print using msgbox in vb6(visual basic)

Private Sub Form_Load()

Dim a, b, c As Integer

a = Int(InputBox("enter a number"))

b = Int(InputBox("enter a number"))

c = a + b

MsgBox (c)

End Sub