59 lines
2.2 KiB
Bash
Executable File
59 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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#
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# Generates printer diagnostic files, so you can read a printer's real page
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# capacity straight off the paper instead of guessing from paper geometry.
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#
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# Usage:
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# ./pagetest.sh [width] [lines] - numbered lines padded with '#', to find
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# a printer's real lines-per-page (the
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# last line number printed on page 1)
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# (default width=64, lines=100)
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# ./pagetest.sh ruler [width] - a single long ruler line marking every
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# 10th column with its tens digit and
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# every 5th with '+', to find a
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# printer's real chars-per-line exactly
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# (default width=200)
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#
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# Print the result with PRINTER_A4=false in printer.conf (no rotation):
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# ./txt2printr.sh pagetest.txt
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dir="$(dirname "$0")"
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outfile="$dir/pagetest.txt"
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if [ "$1" = "ruler" ]; then
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width="${2:-200}"
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awk -v width="$width" '
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BEGIN {
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line = ""
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for (i = 1; i <= width; i++) {
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if (i % 10 == 0) line = line (int(i / 10) % 10)
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else if (i % 5 == 0) line = line "+"
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else line = line "-"
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}
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print line
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}
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' > "$outfile"
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echo "Wrote a $width-char ruler line to $outfile"
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echo "Every 10th column is marked with its tens digit (column 40 -> '4',"
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echo "column 100 -> '0'), every 5th with '+'. Read off the last marker"
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echo "that fully prints to get your printer's exact chars-per-line."
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else
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width="${1:-64}"
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lines="${2:-100}"
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awk -v width="$width" -v lines="$lines" '
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BEGIN {
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for (i = 1; i <= lines; i++) {
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prefix = sprintf("%03d ", i)
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fill = width - length(prefix)
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if (fill < 0) fill = 0
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line = prefix
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for (j = 0; j < fill; j++) line = line "#"
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print line
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}
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}
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' > "$outfile"
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echo "Wrote $lines lines x $width chars to $outfile"
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fi
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echo "Print it with: PRINTER_DEV=/dev/lp0 \"$dir/txt2printr.sh\" \"$outfile\""
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