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52 lines
1.6 KiB
Bash
Executable file
52 lines
1.6 KiB
Bash
Executable file
#!/bin/bash
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# pcb --- Print the terminal's active colours.
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#
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# Copyright (c) 2019-2024 Protesilaos Stavrou <info@protesilaos.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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## Commentary:
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#
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# Print a table with the active terminal's 16 colours. The presenation
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# is made in two rows, while trying to be aware of the width of the
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# terminal.
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#
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# Modified from source:
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# http://bitmote.com/index.php?post/2012/11/19/Using-ANSI-Color-Codes-to-Colorize-Your-Bash-Prompt-on-Linux
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# Under under the terms of CC BY license.
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# Make the size of the blocks dependent on the width of the terminal.
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columns="$(tput cols)"
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if [ "$columns" -gt 90 ]; then
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space=' ' # 9
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elif [ "$columns" -gt 80 ]; then
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space=' ' # 6
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else
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space=' ' # 3
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fi
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echo -e "\n"
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# Run through the 16 colours. Create two rows.
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for i in {0..15}; do
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echo -en "\033[48;5;${i}m${space}\033[m "
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if [ "$i" = 7 ]; then
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echo '' && continue
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fi
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done
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echo -e "\n"
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