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Full Discussion: To print diamond asterisk pattern based on inputs
Top Forums Shell Programming and Scripting To print diamond asterisk pattern based on inputs Post 303037588 by rohit_shinez on Wednesday 7th of August 2019 03:56:30 AM
Old 08-07-2019
To print diamond asterisk pattern based on inputs
I have to print the number of stars that increases on each line from the minimum number until it reaches the maximum number, and then decreases until it goes back to the minimum number. After printing out the lines of stars, it should also print the total number of stars printed.

I have tried using shell scripting and worked. But is there any other simplified and generic way to achieve this

Code:
echo "enter the mininum number "
read min
echo "enter the maximum number "
read max
for (( i=$min;i<=$max;i++))
do
   for (( j=$max;j>=i;j-- ))
   do
   echo -n " "
   done
   for (( c=1;c<=i;c++ ))
   do
   echo -n " *"
   sum=`expr $sum + 1`
   done
echo ""
done
d_max=`expr $max - 1`
for (( i=$d_max;i>=$min;i--))
do
   for (( j=i;j<=$d_max;j++ ))
   do
   if [ $j -eq $d_max ]
   then
   echo -n " "
   fi
   echo -n " "
   done
   for (( c=1;c<=i;c++ ))
   do
   echo -n " *"
   sum=`expr $sum + 1`
   done
echo ""
done
echo "Total No. : "  $sum

Exepcted output
Code:
 

      *
     * *
    * * *
   * * * *
  * * * * *
   * * * *
    * * *
     * *
      *

 

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LEARN ABOUT FREEBSD

lam

LAM(1)							    BSD General Commands Manual 						    LAM(1)

NAME

     lam -- laminate files

SYNOPSIS

     lam [-f min.max] [-s sepstring] [-t c] file ...
     lam [-p min.max] [-s sepstring] [-t c] file ...

DESCRIPTION

     The lam utility copies the named files side by side onto the standard output.  The n-th input lines from the input files are considered frag-
     ments of the single long n-th output line into which they are assembled.  The name `-' means the standard input, and may be repeated.

     Normally, each option affects only the file after it.  If the option letter is capitalized it affects all subsequent files until it appears
     again uncapitalized.  The options are described below:

     -f min.max
	     Print line fragments according to the format string min.max, where min is the minimum field width and max the maximum field width.
	     If min begins with a zero, zeros will be added to make up the field width, and if it begins with a `-', the fragment will be left-
	     adjusted within the field.

     -p min.max
	     Like -f, but pad this file's field when end-of-file is reached and other files are still active.

     -s sepstring
	     Print sepstring before printing line fragments from the next file.  This option may appear after the last file.

     -t c    The input line terminator is c instead of a newline.  The newline normally appended to each output line is omitted.

     To print files simultaneously for easy viewing use pr(1).

EXAMPLES

     The command

     lam file1 file2 file3 file4

     joins 4 files together along each line.  To merge the lines from four different files use

     lam file1 -S "
     " file2 file3 file4

     Every 2 lines of a file may be joined on one line with

     lam - - < file

     and a form letter with substitutions keyed by `@' can be done with

     lam -t @ letter changes

SEE ALSO

     join(1), paste(1), pr(1), printf(3)

STANDARDS

     Some of the functionality of lam is standardized as the paste(1) utility by IEEE Std 1003.2 (``POSIX.2'').

HISTORY

     The lam utility first appeared in 4.2BSD.

BUGS

     The lam utility does not recognize multibyte characters.

BSD
								  August 12, 2004							       BSD
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