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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 303037620 by wisecracker on Thursday 8th of August 2019 04:41:52 AM
Old 08-08-2019
Hi C688, Chubler_XL...

Be aware they only work with MIN=1...
Try 'MIN=6' and 'MAX=11'.

I also made the mistake of thinking MIN was also the number of stars in each horizontal plot.

The OP ALWAYS wants a DIAMOND with SINGLE stars, where say the MIN and MAX values of say '3 and 7' give the same results as '4 and 8' or '5 and 9'.

Here is my POSIX update...
Code:
#!/usr/local/bin/dash
# DIAMOND.sh
# POSIX compliant, with no input error checking.
# Using terminal escape codes just for fun.

echo "Enter minimum value:"
read -r MIN
echo "Enter maximum value:"
read -r MAX
printf "\033c\n"
STRNG="* "
STAR="* "
COUNT=1
HORIZ=34
VERT=4
STAR_COUNT=0

STAR="* "
COUNT=${MAX}
while [ ${COUNT} -ge ${MIN} ]
do
    printf "%b" "\033["${VERT}";"${HORIZ}"f${STAR}"
    STAR="${STAR}${STRNG}"
    COUNT=$(( COUNT - 1 ))
    HORIZ=$(( HORIZ - 1 ))
    VERT=$(( VERT + 1 ))
done

HORIZ=34
VERT=$(( VERT + MAX - MIN -1 ))
STAR="${STRNG}"
COUNT=${MAX}
while [ ${COUNT} -ge ${MIN} ]
do
    printf "%b" "\033["${VERT}";"${HORIZ}"f${STAR}"
    STAR="${STAR}${STRNG}"
    COUNT=$(( COUNT - 1 ))
    HORIZ=$(( HORIZ - 1 ))
    VERT=$(( VERT - 1 ))
done

COUNT=$(( MAX - MIN ))
STAR_COUNT=0
while [ ${COUNT} -ge 0 ]
do
    STAR_COUNT=$(( STAR_COUNT + COUNT ))
    COUNT=$(( COUNT - 1 ))
done
STAR_COUNT=$(( ( STAR_COUNT * 2 ) + ( MAX - MIN ) + 1 ))

printf "\033[H"
echo "Number of stars: ${STAR_COUNT}..."

Results using MIN and MAX of 3 and 7, 4 and 8, and 5 and 9.
OSX 10.14.3, default bash terminal calling dash...
Code:
Number of stars: 25...
AMIGA:amiga~/Desktop/Code/Shell> 

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

These 2 Users Gave Thanks to wisecracker For This Post:
Neo rohit_shinez
 

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LEARN ABOUT DEBIAN

alzabo::sqlmaker::mysql

Alzabo::SQLMaker::MySQL(3pm)				User Contributed Perl Documentation			      Alzabo::SQLMaker::MySQL(3pm)

NAME

       Alzabo::SQLMaker::MySQL - Alzabo SQL making class for MySQL

SYNOPSIS

	 use Alzabo::SQLMaker;

	 my $sql = Alzabo::SQLMaker->new( sql => 'MySQL' );

DESCRIPTION

       This class implementes MySQL-specific SQL creation.  MySQL does not allow subselects.  Any attempt to use a subselect (by passing an "Alz-
       abo::SQMaker" object in as parameter to a method) will result in an "Alzabo::Exception::SQL" error.

METHODS

       Almost all of the functionality inherited from Alzabo::SQLMaker is used as is.  The only overridden methods are "limit()" and
       "get_limit()", as MySQL does allow for a "LIMIT" clause in its SQL.

EXPORTED SQL FUNCTIONS

       SQL may be imported by name or by tags.	They take arguments as documented in the MySQL documentation (version 3.23.39).  The functions
       (organized by tag) are:

       :math

	PI
	RAND
	MOD
	ROUND
	POW
	POWER
	ATAN2
	ABS
	SIGN
	FLOOR
	CEILING
	EXP
	LOG
	LOG10
	SQRT
	COS
	SIN
	TAN
	ACOS
	ASIN
	ATAN
	COT
	DEGREES
	RADIANS
	TRUNCATE

       :string

	CHAR
	POSITION
	INSTR
	LEFT
	RIGHT
	FIND_IN_SET
	REPEAT
	LEAST
	GREATEST
	CONCAT
	ELT
	FIELD
	MAKE_SET
	LOCATE
	SUBSTRING
	CONV
	LPAD
	RPAD
	MID
	SUBSTRING_INDEX
	REPLACE
	CONCAT_WS
	EXPORT_SET
	INSERT
	ASCII
	ORD
	BIN
	OCT
	HEX
	LENGTH
	OCTET_LENGTH
	CHAR_LENGTH
	CHARACTER_LENGTH
	TRIM
	LTRIM
	RTRIM
	SOUNDEX
	SPACE
	REVERSE
	LCASE
	LOWER
	UCASE
	UPPER

       :datetime

	CURDATE
	CURRENT_DATE
	CURTIME
	CURRENT_TIME
	NOW
	SYSDATE
	CURRENT_TIMESTAMP
	UNIX_TIMESTAMP
	WEEK
	PERIOD_ADD
	PERIOD_DIFF
	DATE_ADD
	DATE_SUB
	ADDDATE
	SUBDATE
	DATE_FORMAT
	TIME_FORMAT
	FROM_UNIXTIME
	DAYOFWEEK
	WEEKDAY
	DAYOFYEAR
	MONTH
	DAYNAME
	MONTHNAME
	QUARTER
	YEAR
	YEARWEEK
	HOUR
	MINUTE
	SECOND
	TO_DAYS
	FROM_DAYS
	SEC_TO_TIME
	TIME_TO_SEC

       :aggregate

       These are functions which operate on an aggregate set of values all at once.

	COUNT
	AVG
	MIN
	MAX
	SUM
	STD
	STDDEV

       :system

       These are functions which return information about the MySQL server.

	DATABASE
	USER
	SYSTEM_USER
	SESSION_USER
	VERSION
	CONNECTION_ID
	LAST_INSERT_ID
	GET_LOCK
	RELEASE_LOCK
	BENCHMARK
	MASTER_POS_WAIT

       :control

       These are flow control functions:

	IFNULL
	NULLIF
	IF

       :misc

       These are functions which don't fit into any other categories.

	ENCRYPT
	ENCODE
	DECODE
	FORMAT
	INET_NTOA
	INET_ATON
	BIT_OR
	BIT_AND
	PASSWORD
	MD5
	LOAD_FILE

       :fulltext

       These are functions related to MySQL's fulltext searching capabilities.

	MATCH
	AGAINST
	IN_BOOLEAN_MODE

       NOTE: In MySQL 4.0 and greater, it is possible to say that a search is in boolean mode in order to change how MySQL handles the argument
       given to AGAINST.  This will not work with earlier versions.

       :common

       These are functions from other groups that are most commonly used.

	NOW
	COUNT
	AVG
	MIN
	MAX
	SUM
	DISTINCT

AUTHOR

       Dave Rolsky, <dave@urth.org>

perl v5.8.8							    2007-12-23					      Alzabo::SQLMaker::MySQL(3pm)
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