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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 303037601 by wisecracker on Wednesday 7th of August 2019 01:58:04 PM
Old 08-07-2019
Fully dash/POSIX shell only compliant.
Uses terminal escape codes for fun.
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="* "
COUNT=1
STAR="${STRNG}"
HORIZ=34
VERT=4
while [ ${COUNT} -lt ${MIN} ]
do
    STRNG="${STRNG}"'* '
    COUNT=$(( COUNT + 1 ))
done

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

Result OSX 10.14.3, default bash terminal calling dash, values given, 3 MIN, 10 MAX:
Code:
AMIGA:amiga~/Desktop/Code/Shell> 


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

 

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LEARN ABOUT DEBIAN

pqlist

PQLIST(1)							      pqlist								 PQLIST(1)

NAME

       pqlist - List available NetWare print queues

SYNOPSIS

       pqlist [ -h ] [ -S server ] [ -U user name ] [ -P password
	| -n ] [ -C ] [ pattern ]

DESCRIPTION

       pqlist lists all the NetWare print queues available to you on some server.  If you are already connected to some server, this one is used.

       If  pqlist  does  not print to a tty, the decorative header line is not printed, so that you can count the printing queue available on your
       server by doing

	 pqlist -S server | wc -l

       pqlist looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more  information.
       Please note that the access permissions of .nwclient MUST be 600, for security reasons.

OPTIONS

       pattern
	  pattern  is  used to list only selected queues. You can use wildcards in the pattern, but you have to be careful to prevent shell inter-
	  pretation of wildcards like '*'.

       -h
	  -h is used to print out a short help text.

       -S server
	  server is the name of the server you want to use.

       -U user name
	  If the user name your NetWare administrator gave to you differs from your unix user-id, you should use -U to tell the server about  your
	  NetWare user name.

       -P password
	  You may want to give the password required by the server on the command line. You should be careful about using passwords in scripts.

       -n
	  -n should be given to mount shares which do not require a password to log in.

	  If neither -n nor -P are given, pqlist prompts for a password.

       -C
	  By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off
	  this conversion by -C.

SEE ALSO

       nwclient(5), nprint(1), slist(1), ncpmount(8), ncpumount(8)

CREDITS

       pqlist was written by Volker Lendecke (lendecke@math.uni-goettingen.de)

pqlist								    01/10/1996								 PQLIST(1)
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