Various Bash Shell Script to display Pyramid and Pattern

Various Bash Shell Script to display Pyramid and Pattern

In this, post I am sharing how to create half and full pyramids, Floyd's triangle and Pascal's triangle in bash shell script.

Bash Shell Script to print half pyramid using *

*

* *

* * *

* * * *

* * * * *

Script:

v_rows=5

for((i=1; i<=$v_rows; i++))

do

  for((j=1; j<=$i; j++))

  do

    echo -n "* "

  done

  echo

done

Bash Shell Script to print half pyramid using numbers

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

Script:

v_num=1

v_rows=5

for((i=1; i<=$v_rows; i++))

do

  for((j=1; j<=$i; j++))

  do

    echo -n "$v_num "

    v_num=$((v_num + 1))

  done

  v_num=1

  echo

done

Bash Shell Script to print inverted half pyramid using *

* * * * *

* * * *

* * *

* *

*

Script:

v_rows=5

for((i=$v_rows; i>=1; i--))

do

  for((j=1; j<=$i; j++))

  do

    echo -n "* "

  done

  echo

done

Bash Shell Script to print inverted half pyramid using numbers

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

Script:

v_num=1

v_rows=5

for((i=$v_rows; i>=1; i--))

do

  for((j=1; j<=$i; j++))

  do

    echo -n "$v_num "

    v_num=$((v_num + 1))

  done

  v_num=1

  echo

done

Bash Shell Script to print full pyramid using *

        *

      * * *

    * * * * *

  * * * * * * *

* * * * * * * * *

Script:

v_rows=5

for((i=1; i<=$v_rows; i++))

do

  for((j=1; j<=$v_rows - $i; j++))

  do

    echo -n "  "

  done

  for((j=1; j<=2*$i - 1; j++))

  do

    echo -n "* "

  done

  echo

done

Bash Shell Script to print full pyramid using Numbers

        1

      2 3 2

    3 4 5 4 3

  4 5 6 7 6 5 4

5 6 7 8 9 8 7 6 5

Script:

v_rows=5

v_num=1

for((i=1; i<=$v_rows; i++))

do

  for((j=1; j<=$v_rows - $i; j++))

  do

    echo -n "  "

  done

  v_num=$i

  k=1

  for((j=1; j<=2*$i - 1; j++))

  do

    if [ $j -lt $i ];

    then

      echo -n "$v_num "

      v_num=$((v_num + 1))

    elif [ $j -eq $i ];

    then

      echo -n "$v_num "

      v_num=$((v_num - 1))

    else

      echo -n "$v_num "

      v_num=$((v_num - 1))

    fi

  done

  echo

done

Bash Shell Script to print Floyd's Triangle

1

2 3

4 5 6

7 8 9 10

Script:

v_num=1

v_rows=4

for((i=1; i<=$v_rows; i++))

do

  for((j=1; j<=$i; j++))

  do

    echo -n "$v_num "

    v_num=$((v_num + 1))

  done

  echo

done

Diamond

Script

#!/bin/bash

echo "Enter the number of rows: "

read n

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

do

  for((j=1; j<=n-i; j++))

  do

    echo -n " "

  done

  for((j=1; j<=2*i-1; j++))

  do

    echo -n "*"

  done

  echo ""

done

for((i=n-1; i>=1; i--))

do

  for((j=1; j<=n-i; j++))

  do

    echo -n " "

  done

  for((j=1; j<=2*i-1; j++))

  do

    echo -n "*"

  done

  echo ""

done

     *

   ***

  *****

 *******

*********

 *******

  *****

   ***

    *

Triangular Shape

#!/bin/bash

echo "Enter the number of rows: "

read n

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

do

  for((j=1; j<=i; j++))

  do

    echo -n "*"

  done

  echo ""

done

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