Command-line tools to output Tables and Graphs/Plots to the console
Copyright © 2023 Teal Dulcet
These command-line tools use my C++ Table and Graph libraries, which use box-drawing, Braille, fraction and other Unicode characters and terminal colors and formatting to output tables and graphs/plots to the console. The table tool is designed to extend the existing -t/--table options of column command from util-linux with much more functionality.
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Requires support for C++17 and downloading the Table header only (tables.hpp) library into the same directory as the program.
Compile with:
- GCC:
g++ -std=c++17 -Wall -g -O3 -flto table.cpp -o table - Clang:
clang++ -std=c++17 -Wall -g -O3 -flto table.cpp -o table
Run with: ./table [OPTION(S)]... [FILE(S)]...
Table cells can contain Unicode characters and formatted text with ANSI escape sequences. See Help below for full usage information. See the documentation for the library options for more details.
If you want this program to be available for all users, install it. Run: sudo mv table /usr/local/bin/table and sudo chmod +x /usr/local/bin/table.
$ table --help
Usage: table [OPTION(S)]... [FILE(S)]...
or: table <OPTION>
Convert input into a table. With no FILE, or when FILE is -, read from standard input. Empty lines are ignored. All rows should have the same number of columns. Table cells can contain Unicode characters and formatted text with ANSI escape sequences. See examples below.
Options:
Mandatory arguments to long options are mandatory for short options too.
-t, --title <TITLE> Table Name/Title
-n, --name <TITLE> Show a title above the table. The title is word wrapped based on the current width of the terminal.
-N, --columns <NAMES> Column names
Adds row to top of the table. Provide either a comma separated list of names or specify this option multiple times, once for each column.
-M, --rows <NAMES> Row names
Adds column to left of the table. Provide either a comma separated list of names or specify this option multiple times, once for each row.
-l, --left Left align (default)
-R, --right Right align
-r, --header-row Header row
Header rows are bolded, centered and have a border.
-c, --header-column Header column
Header columns are bolded, centered and have a border.
-b, --no-border No table border
-C, --cell-border Show cell border
-L, --keep-empty-lines Do not ignore empty lines
-s, --separator <SEP> Characters to delimit columns/fields (default any whitespace)
-d, --delimiter <SEP>
-z, --zero-terminated Line delimiter is NUL, not newline
-p, --padding <PADDING> Cell padding (default 1)
-S, --style <STYLE> Border style (default 'light')
<STYLE> can be:
ascii: ASCII
basic: Basic
light: Light (default)
heavy: Heavy
double: Double
arc: Light Arc
light-dashed: Light Dashed
heavy-dashed: Heavy Dashed
--help Display this help and exit
--version Output version information and exit
Examples:
Output table
$ printf 'a b c\n1 2 3\n' | table
Output table with separator/delimiter
$ printf 'a:b:c\n1::3\n' | table --separator ':'
Output table with header row
$ ls -l --color | tail -n +2 | table --header-row --columns 'PERM,LINKS,OWNER,GROUP,SIZE,MONTH,DAY,HH:MM/YEAR,NAME'
Output table with header row and column (Bash syntax)
$ printf '%s\t%s\t%s\t%s\n' 'Data '{1..16} | table --separator $'\t' --header-row --header-column --columns 'Header row/column 1' --columns='Header row '{2..5} --rows='Header column '{2..5}
Output table of values (Bash syntax)
$ for i in {-10..10}; do echo "$i $(( i + 1 ))"; done | table --header-row --columns 'x,y'
Output sorted table (Bash syntax)
$ for i in {0..4}; do for j in {0..4}; do echo -n "$(( RANDOM * RANDOM )) "; done; echo; done | sort -n -k 1 | table
Output a table in each style (Bash syntax)
$ for s in ascii basic light heavy double arc light-dashed heavy-dashed; do printf 'a b c\n1 2 3\n' | table --cell-border --style=$s --title "Style: $s"; done
Requires support for C++17 and downloading both the Table (tables.hpp) and Graph (graphs.hpp) header only libraries into the same directory as the program. The Table library is used to output the legends.
Compile with:
- GCC:
g++ -std=c++17 -Wall -g -O3 -flto graph.cpp -o graph - Clang:
clang++ -std=c++17 -Wall -g -O3 -flto graph.cpp -o graph
Run with: ./graph [OPTION(S)]... [FILE(S)]...
With a single input and column it will output a histogram, otherwise it will output a plot. See Help below for full usage information. See the documentation for the library options for more details.
If you want this program to be available for all users, install it. Run: sudo mv graph /usr/local/bin/graph and sudo chmod +x /usr/local/bin/graph.
$ graph --help
Usage: graph [OPTION(S)]... [FILE(S)]...
or: graph <OPTION>
Convert input into a graph/plot. With no FILE, or when FILE is -, read from standard input. Empty lines are ignored. With a single input, each row can have one or more columns in the form 'x y1 ... yn', which will be converted to 'x y1' ... 'x yn'. With a single input and column it will output a histogram, otherwise it will output a plot. With multiple inputs, rows should have exactly two columns in the form 'x y'. See examples below.
Options:
Mandatory arguments to long options are mandatory for short options too.
-t, --title <TITLE> Graph Name/Title
--name <TITLE> Show a title above the graph. The title is word wrapped based on the current width of the terminal.
-h, --height <HEIGHT> Graph height (default 0)
If HEIGHT is 0, it will be set to the current height of the terminal (number of rows times four).
-w, --width <WIDTH> Graph width (default 0)
If WIDTH is 0, it will be set to the current width of the terminal (number of columns times two).
-x, --x-min <XMIN> Minimum x value (default 0)
If XMIN and XMAX are both 0, they will be set to the respective minimum and maximum values of x in the input.
-X, --x-max <XMAX> Maximum x value (default 0)
If XMIN and XMAX are both 0, they will be set to the respective minimum and maximum values of x in the input.
-y, --y-min <YMIN> Minimum y value (default 0)
If YMIN and YMAX are both 0, they will be set to the respective minimum and maximum values of y in the input.
-Y, --y-max <YMAX> Maximum y value (default 0)
If YMIN and YMAX are both 0, they will be set to the respective minimum and maximum values of y in the input.
-C, --type <TYPE> Type (default 'braille')
<TYPE> can be:
braille: Braille (default)
block: Block
-m, --mark <MARK> Mark type (default 'dot')
<MARK> can be:
dot: Dot (default)
plus: Plus
square: Square
-b, --border Border
Show graph and legend border.
-a, --no-axis No axis
Do not show the axis. Implies --no-axis-labels, --no-ticks and --no-units-labels.
-l, --no-axis-labels No axis labels
-T, --no-ticks No axis tick marks
Implies --no-units-labels.
-u, --no-units-labels No axis units labels
--x-units <UNIT> X-axis units format (default 'fracts')
See UNIT below.
--y-units <UNIT> Y-axis units format (default 'fracts')
See UNIT below.
-n, --names <NAMES> Series names
Provide either a comma separated list of names or specify this option multiple times, once for each input/series.
-L, --legend Legend
Show a legend below the graph. Uses the --names values or the first line/row of each input if that options is not provided.
-s, --separator <SEP> Characters to delimit columns/fields (default any whitespace)
-d, --delimiter <SEP>
-z, --zero-terminated Line delimiter is NUL, not newline
-i, --int Integer numbers
Read input values as integer numbers.
-f, --float Floating point numbers (default)
Read input values as floating point numbers.
-S, --style <STYLE> Border style (default 'light')
<STYLE> can be:
ascii: ASCII
basic: Basic
light: Light (default)
heavy: Heavy
double: Double
arc: Light Arc
light-dashed: Light Dashed
heavy-dashed: Heavy Dashed
-c, --color <COLOR> Graph/Plot color (default 'red')
Used only when plotting a single input/series. Otherwise, colors red - white (2 - 16) are used inorder. The system default color is used where the plots cross. <COLOR> can be:
default: System default
black: Black
red: Red (default)
green: Green
yellow: Yellow
blue: Blue
magenta: Magenta
cyan: Cyan
light-gray: Light Gray
dark-gray: Dark Gray
light-red: Light Red
light-green: Light Green
light-yellow: Light Yellow
light-blue: Light Blue
light-magenta: Light Magenta
light-cyan: Light Cyan
white: White
--help Display this help and exit
--version Output version information and exit
UNIT options:
number: Locale number format (similar to 'numfmt --grouping')
e.g. 1234.25 → 1,234.25
si: Auto-scale to the SI standard (similar to 'numfmt --to=si')
e.g. 1000 → 1K
iec: Auto-scale to the IEC standard (similar to 'numfmt --to=iec')
e.g. 1024 → 1K
iec-i: Auto-scale to the IEC standard (similar to 'numfmt --to=iec-i')
e.g. 1024 → 1Ki
fracts: Locale number format, but convert fractions and mathematical constants to Unicode characters (default)
e.g. 1234.25 → 1,234¼
percent: Percentage format
e.g. 0.123 → 12.3%
date: Locale date format (same as 'date +%x')
e.g. 2147483647 → 01/19/2038
time: Locale time format (same as 'date +%X')
e.g. 2147483647 → 03:14:07 AM
monetary: Locale monetary/currency format (does not work with the ‘C’ locale)
e.g. 123 → $1.23
Examples:
Output plot
$ printf '1 1\n2 2\n3 3\n4 4\n5 5\n6 6\n' | graph --height 80 --width 80 --x-min -10 --x-max 10 --y-min -10 --y-max 10
Output plot of single series (Bash Syntax)
$ for i in {-20..20}; do echo "$i $(( i + 1 ))"; done | graph --height 160 --width 160 --x-min -20 --x-max 20 --y-min -20 --y-max 20
Output plot of multiple series (Bash Syntax)
$ for i in {-20..20}; do echo "$i $(( 2 * i )) $(( i ** 2 ))"; done | graph --height 160 --width 160 --x-min -20 --x-max 20 --y-min -20 --y-max 20
Output graph of multiple functions
$ awk 'BEGIN { pi=atan2(0, -1); width=160; xmin=-(2*pi); xmax=2*pi; xstep=(xmax-xmin)/width; for(i=0; i<width*2; ++i) { x=((i/2)*xstep)+xmin; print x,sin(x),cos(x),sin(x)/cos(x) } }' | graph --height 160 --width 160 --y-min -4 --y-max 4 --no-units-labels
Output a plot in each style (Bash syntax)
$ for s in ascii basic light heavy double arc light-dashed heavy-dashed; do for i in {0..9}; do echo "$i $(( i + 1 ))"; done | graph --height 80 --width 80 --x-min -10 --x-max 10 --y-min -10 --y-max 10 --style=$s --title "Style: $s"; done
Pull requests welcome! Ideas for contributions:
- Add more options
- Add more examples
- Improve the performance
- Add tests
- Port to other languages (C, Rust, etc.)