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Full Discussion: IBM Code Page 437...
Operating Systems Linux IBM Code Page 437... Post 303037320 by wisecracker on Monday 29th of July 2019 05:59:52 PM
Old 07-29-2019
Last upload by myself for this thread...
A fully POSIX compliant version using the default POSIX '#!/bin/sh' for Linux Mint 19, which is '#!/bin/dash'.
Code:
#!/bin/dash
# Default dash for......
# Linux Mint 19, current update as of 28-07-2019.
#
# Fully POSIX compliant Demo...
# Author B.Walker, G0LCU - Issued as CC0 licence, (Public Domain), to UNIX.COM.
#
# CP437_POSIX.sh
# Fun IBM Style Pseudo-CodePage 437 Demo...
#
# NOTE: The standard ASCII characters REMAIN STANDARD!

CP437=''
BLOCK=''
DITHER=''

# Create the _binary_ file...
printf "\040\342\230\272\342\230\273\342\231\245\342\231\246\342\231\243\342\231\240\342\200\242\342\227\230\342\227\213\342\227\231\342\231\202\342\231\200\342\231\252\342\231\253\342\230\274\342\226\272\342\227\204\342\206\225\342\200\274\302\266\302\247\342\226\254\342\206\250\342\206\221\342\206\223\342\206\222\342\206\220\342\210\237\342\206\224\342\226\262\342\226\274\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\342\214\202\303\207\303\274\303\251\303\242\303\244\303\240\303\245\303\247\303\252\303\253\303\250\303\257\303\256\303\254\303\204\303\205\303\211\303\246\303\206\303\264\303\266\303\262\303\273\303\271\303\277\303\226\303\234\302\242\302\243\302\245\342\202\247\306\222\303\241\303\255\303\263\303\272\303\261\303\221\302\252\302\272\302\277\342\214\220\302\254\302\275\302\274\302\241\302\253\302\273\342\226\221\342\226\222\342\226\223\342\224\202\342\224\244\342\225\241\342\225\242\342\225\226\342\225\225\342\225\243\342\225\221\342\225\227\342\225\235\342\225\234\342\225\233\342\224\220\342\224\224\342\224\264\342\224\254\342\224\234\342\224\200\342\224\274\342\225\236\342\225\237\342\225\232\342\225\224\342\225\251\342\225\246\342\225\240\342\225\220\342\225\254\342\225\247\342\225\250\342\225\244\342\225\245\342\225\231\342\225\230\342\225\222\342\225\223\342\225\253\342\225\252\342\224\230\342\224\214\342\226\210\342\226\204\342\226\214\342\226\220\342\226\200\316\261\303\237\316\223\317\200\316\243\317\203\302\265\317\204\316\246\316\230\316\251\316\264\342\210\236\317\206\316\265\342\210\251\342\211\241\302\261\342\211\245\342\211\244\342\214\240\342\214\241\303\267\342\211\210\302\260\342\210\231\302\267\342\210\232\342\201\277\302\262\342\226\240\040" > IBM_CP437

CP437=$( cat IBM_CP437 )

# Extract some characters and create a pseudo gradient...
echo ""
echo "${CP437}"
echo ""
echo "Obtain block character..."
BLOCK=${CP437%%â-„*}
BLOCK=${BLOCK##*┌}
echo "Now obtain 3 dithered characters..."
DITHER=${CP437%%│*}
DITHER=${DITHER##*»}
echo "Join a space, the DITHERs and BLOCK together to give a pseudo-gradient:-"
echo ""
echo "' ${DITHER}${BLOCK}'"
echo ""

Enjoy finding simple solutions to often difficult problems...
Bazza.
IBM Code Page 437...-cp437_posixpng
 

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