5 use List::Util qw( min max sum );
6 use open qw( :std :utf8 );
14 Getopt::Long->import('2.33', qw( :config gnu_getopt ));
18 'M' => sub { $opt{color} = 0 },
22 s/\A[0-9]+\z/(?:\\S*\\h+){$_}\\K/;
24 (!!$1 && '(?:\d+\D+\b){'.$1.'}\K') . '\s* (?=\d)'
26 $opt{anchor} = qr/$_/;
27 } or die $@ =~ s/(?:\ at\ \N+)?\Z/ for option $_[0]/r;
34 'trim|length|l=s' => sub {
35 my ($optname, $optval) = @_;
36 $optval =~ s/%$// and $opt{trimpct}++;
37 $optval =~ m/\A-?[0-9]+\z/ or die(
38 "Value \"$optval\" invalid for option $optname",
39 " (number or percentage expected)\n"
47 my ($optname, $optval) = @_;
49 $optval =~ /\A-[0-9]+\z/ and $optval .= '-'; # tail shorthand
52 $optval =~ m/\A (?: (-? [0-9]+)? - )? (-? [0-9]+)? \z/ or die(
53 "Value \"$optval\" invalid for option limit",
58 s/\A-0*\z// and $_ ||= undef for $end // ();
63 return max(0, $lines + $start + 2);
68 my ($limit, $offset) = @_;
70 return $offset - $end - 1; # count
73 return $limit - $end + 1; # bottom
75 elsif ($end <= $limit) {
76 return $end - 1; # less
84 'graph-format=s' => sub {
85 $opt{'graph-format'} = substr $_[1], 0, 1;
92 fire => [qw( 90 31 91 33 93 97 96 )],
93 fire256=> [map {"38;5;$_"} qw(
95 202 208 214 220 226 227 228 229 230 231 159
97 whites => [qw( 1;30 0;37 1;37 )],
98 grays => [map {"38;5;$_"} 0, 232..255, 15],
99 random => [map {"38;5;$_"} List::Util::shuffle(17..231)],
100 rainbow=> [map {"38;5;$_"}
102 (map { 196 + $_*6 } 0..4), # +g
103 (map { 226 - $_*6*6 } 0..4), # -r
104 (map { 46 + $_ } 0..4), # +b
105 (map { 51 - $_*6 } 0..4), # -g
106 (map { 21 + $_*6*6 } 0..4), # +r
107 (map { 201 - $_ } 0..4), # -b
111 my @vals = split /[^0-9;]/, $_[1]
112 or die "Empty palette resulting from \"$_[1]\"\n";
122 my $mascot = $opt{ascii} ? '=^,^=' : 'ฅ^•ﻌ•^ฅ';
123 say "barcat $mascot version $VERSION";
127 /^=/ ? last : print for readline *DATA; # text between __END__ and pod
132 Pod::Usage::pod2usage(
133 -exitval => 0, -perldocopt => '-oman', -verbose => 2,
136 ) or exit 64; # EX_USAGE
139 $opt{width} ||= $ENV{COLUMNS} || qx(tput cols) || 80 unless $opt{spark};
140 $opt{color} //= $ENV{NO_COLOR} ? 0 : -t *STDOUT; # enable on tty
141 $opt{'graph-format'} //= '-';
142 $opt{trim} *= $opt{width} / 100 if $opt{trimpct};
143 $opt{units} = [split //, ' kMGTPEZYRQqryzafpn'.($opt{ascii} ? 'u' : 'μ').'m']
144 if $opt{'human-readable'};
145 $opt{'value-length'} = 4 if $opt{units};
146 $opt{'value-length'} = 1 if $opt{unmodified};
147 $opt{'signal-stat'} //= exists $SIG{INFO} ? 'INFO' : 'QUIT';
148 $opt{markers} //= '=avg >31.73v <68.27v +50v |0';
149 $opt{report} //= join('',
150 '${partsum+; $_ .= " of "}',
151 '${sum+; color(1); $_ .= " total in "}',
153 '${lines#; $_ = $_ != @order && " over $_ lines"}',
154 sprintf('${count: (%s)}', join ', ',
155 '${min; color(31)} min',
156 '${avg; $opt{reformat} or $_ = sprintf "%0.2f", $_; color(36)} avg',
157 '${max; color(32)} max',
160 $opt{palette} //= $opt{color} && [31, 90, 32];
161 $opt{indicators} = [split //, $opt{indicators} ||
162 ($opt{ascii} ? ' .oO' : $opt{spark} ? ' ▁▂▃▄▅▆▇█' : ' ▏▎▍▌▋▊▉█')
163 ] if defined $opt{indicators} or $opt{spark};
164 $opt{input} = (@ARGV && $ARGV[0] =~ m/\A[-0-9]/) ? \@ARGV : undef
165 and undef $opt{interval};
167 $opt{'calc-format'} = sub { sprintf '%*.*f', 0, 2, $_[0] };
168 $opt{'value-format'} = $opt{sexagesimal} ? sub {
169 my $s = abs($_[0]) + .5;
170 sprintf('%s%d:%02d:%02d', $_[0] < 0 && '-', $s/3600, $s/60%60, $s%60);
171 } : $opt{units} && sub {
173 log(abs $_[0] || 1) / log(10)
174 - 3 * (abs($_[0]) < .9995) # shift to smaller unit if below 1
175 + 1e-15 # float imprecision
177 my $decimal = ($unit % 3) == ($unit < 0);
178 $unit -= log($decimal ? .995 : .9995) / log(10); # rounded
179 $decimal = ($unit % 3) == ($unit < 0);
180 $decimal &&= $_[0] !~ /^-?0*[0-9]{1,3}$/; # integer 0..999
182 3 + ($_[0] < 0), # digits plus optional negative sign
184 $_[0] / 1000 ** int($unit/3), # number
185 $#{$opt{units}} * 1.5 < abs $unit ? sprintf('e%d', $unit) :
186 $opt{units}->[$unit/3] # suffix
188 } and $opt{reformat}++;
189 $opt{'value-format'} ||= sub { sprintf '%.8g', $_[0] };
192 my (@lines, @values, @order, %uniq);
194 $SIG{$_} = \&show_stat for $opt{'signal-stat'} || ();
197 alarm $opt{interval} if defined $opt{interval} and $opt{interval} > 0;
199 $SIG{INT} = \&show_exit;
201 if (defined $opt{interval}) {
202 $opt{interval} ||= 1;
203 alarm $opt{interval} if $opt{interval} > 0;
206 require Tie::Array::Sorted;
207 tie @order, 'Tie::Array::Sorted', sub { $_[1] <=> $_[0] };
208 } or warn $@, "Expect slowdown with large datasets!\n"
212 my $float = qr<[0-9]* [.]? [0-9]+ (?: e[+-]?[0-9]+ )?>; # positive numberish
213 my $valmatch = $opt{anchor} // qr/\A/;
214 $valmatch .= !$opt{count} ? qr/( \h* -? $float |)/ :
215 $opt{anchor} ? qr/(\S*)/ : qr/(.*)/;
217 while (defined ($_ = $opt{input} ? shift @{ $opt{input} } : readline)) {
221 $valnum = m/$valmatch/ && $1;
222 $uniq{$valnum}++ and next;
223 push @values, $valnum;
227 s/\A\h*// unless $opt{unmodified};
228 $valnum = s/$valmatch/\n/ && $1;
229 push @values, $valnum;
230 push @order, $valnum if length $valnum;
233 if (defined $opt{trim} and defined $valnum) {
234 my $trimpos = abs $opt{trim};
235 $trimpos -= length $valnum if $opt{unmodified};
237 $_ = substr $_, 0, 2;
239 elsif (length > $trimpos) {
240 # cut and replace (intentional lvalue for speed, contrary to PBP)
241 substr($_, $trimpos - 1) = $opt{ascii} ? '>' : '…';
247 show_lines() if defined $opt{interval} and $opt{interval} < 0
248 and $. % $opt{interval} == 0;
251 $SIG{INT} = 'DEFAULT';
254 $opt{color} and defined $_[0] or return '';
255 return "\e[$_[0]m" if defined wantarray;
256 $_ = color(@_) . $_ . color(0) if defined;
261 state $nr = $opt{hidemin} ? $opt{hidemin}->($#lines) : 0;
262 @lines > $nr or return;
264 my $limit = $opt{hidemax} ? $opt{hidemax}->($#lines, $nr) : $#lines;
267 $_ = $uniq{$_} for @values[$nr .. $limit];
271 @order = sort { $b <=> $a } @order unless tied @order;
272 my $maxval = $opt{maxval} // (
273 $opt{hidemax} ? max grep { length } @values[$nr .. $limit] :
276 my $minval = $opt{minval} // min $order[-1] // (), 0;
277 my $range = $maxval - $minval;
278 $range &&= log $range if $opt{log};
279 my $lenval = $opt{'value-length'} // max map { length } @order;
280 my $len = defined $opt{trim} && $opt{trim} <= 0 ? -$opt{trim} + 1 :
281 max(map { length $values[$_] && length $lines[$_] } $nr .. $limit)
283 my $size = defined $opt{width} && $range &&
284 ($opt{width} - $lenval - $len - !!$opt{indicators}); # bar multiplication
287 if ($opt{markers} and $size > 0) {
288 for my $markspec (split /\h/, $opt{markers}) {
289 my ($char, $func) = split //, $markspec, 2;
290 my $increment = $func =~ s/[+]\z//;
292 if ($func =~ /\A\/($float)\z/) {
293 my @range = my $multiple = my $next = $1;
294 while ($next < $maxval) {
295 $multiple *= 10 if $opt{log};
296 push @range, $next += $multiple;
302 warn "Invalid marker $char: $@" if $@;
307 $pos &&= log $pos if $opt{log};
309 $increment ||= $minval && !$pos;
310 color(36) for $barmark[$pos / $range * $size + $increment + .5] = $char;
314 state $lastmax = $maxval;
315 if ($maxval > $lastmax) {
316 print ' ' x ($lenval + $len);
319 ($lastmax - $minval) * $size / $range + .5,
320 '-' x (($values[$nr - 1] - $minval) * $size / $range);
322 say '+' x (($range - $lastmax) * $size / $range + .5);
329 color(31), sprintf('%*s', $lenval, $minval),
330 color(90), '-', color(36), '+',
331 color(32), sprintf('%*s', $size - 3, $maxval),
332 color(90), '-', color(36), '+',
336 while ($nr <= $limit) {
337 my $val = $values[$nr];
340 $rel = $val - $minval;
341 $rel &&= log $rel if $opt{log};
342 $rel = min(1, $rel / $range) if $range; # 0..1
344 my $color = !length $val || !$opt{palette} ? undef :
345 $val == $order[0] ? $opt{palette}->[-1] : # max
346 $val == $order[-1] ? $opt{palette}->[0] : # min
347 $opt{palette}->[ $rel * ($#{$opt{palette}} - 1) + 1 ];
348 my $indicator = $opt{indicators} && $opt{indicators}->[
349 !length($val) || !$#{$opt{indicators}} ? 0 : # blank
350 $#{$opt{indicators}} < 2 ? 1 :
351 $val >= $order[0] ? -1 :
352 $rel * ($#{$opt{indicators}} - 1e-14) + 1
356 say '' if $opt{width} and $nr and $nr % $opt{width} == 0;
357 print color($color), $_ for $indicator;
360 print $indicator if defined $indicator;
363 $val = sprintf("%*s", $lenval,
364 $opt{reformat} ? $opt{'value-format'}->($val) : $val
366 color($color) for $val;
368 my $line = $lines[$nr] =~ s/\n/$val/r;
369 if (not length $val) {
373 printf '%-*s', $len + length($val), $line;
374 if ($rel and $size) {
375 print $barmark[$_] // $opt{'graph-format'}
376 for 1 .. $rel * $size + .5;
383 say $opt{palette} ? color(0) : '' if $opt{spark};
384 %uniq = () if $opt{interval} and $opt{count};
395 my $linemin = !$opt{hidemin} ? 0 :
396 ($vars{start} = $opt{hidemin}->($#lines));
397 my $linemax = !$opt{hidemax} ? $#lines :
398 ($vars{end} = $opt{hidemax}->($#lines, $vars{start}));
400 $vars{partsum} = sum(0, grep {length} @values[$linemin .. $linemax])
401 if $linemin <= $linemax and ($opt{hidemin} or $opt{hidemax});
407 $vars{avg} = $vars{sum} / @order;
409 say varfmt($opt{report}, \%vars);
415 if ($func eq 'avg') {
416 return sum(@order) / @order;
418 elsif ($func eq 'sum') {
421 elsif ($func =~ /\A([0-9.]+)v\z/) {
423 "percentile $1 out of bounds\n"
425 my $index = $#order * $1 / 100;
426 return ($order[$index] + $order[$index + .5]) / 2;
428 elsif ($func =~ /\A-?[0-9.]+\z/) {
432 die "$func unknown\n";
437 my ($fmt, $vars) = @_;
438 $fmt =~ s[\$\{ \h*+ ((?: [^{}]++ | \{(?1)\} )+) \}]{
439 my ($name, $op, $cmd) = split /\s*([;:])/, $1, 2;
440 my $format = $name =~ s/\+// || $name !~ s/\#// && $opt{reformat};
441 local $_ = exists $vars->{$name} ? $vars->{$name} : calc($name);
443 $_ = $opt{'value-format'}->($_) if $format;
444 if ($cmd and $op eq ':') {
445 $_ = varfmt($cmd, $vars);
449 warn "Error in \$$name report: $@" if $@;
459 show_stat() if $opt{stat};
460 exit 130 if @_; # 0x80+signo
468 barcat [OPTIONS] [FILES|NUMBERS] (=•.•=)
471 -a, --[no-]ascii Restrict user interface to ASCII characters
472 -C, --[no-]color Force colored output of values and bar markers
473 -c, --count Omit repetitions and count the number of
475 -f, --field=([+]N|REGEXP)
476 Compare values after a given number of whitespace
478 --header Prepend a chart axis with minimum and maximum
480 -H, --human-readable Format values using SI unit prefixes
481 --sexagesimal Convert seconds to HH:MM:SS time format
482 -t, --interval[=(N|-LINES)]
483 Output partial progress every given number of
484 seconds or input lines
485 -l, --length=[-]SIZE[%] Trim line contents (between number and bars)
486 -L, --limit=[N|[-]START(-[END]|+N)]
487 Select a range of lines to display
488 -e, --log Logarithmic (exponential) scale instead of linear
489 --graph-format=CHAR Glyph to repeat for the graph line
490 -m, --markers=FORMAT Statistical positions to indicate on bars
491 --min=N, --max=N Bars extend from 0 or the minimum value if lower
492 --palette=(PRESET|COLORS)
493 Override colors of parsed numbers
494 -_, --spark Replace lines by sparklines
495 --indicators[=CHARS] Prefix a unicode character corresponding to each
497 -s, --stat Total statistics after all data
498 -u, --unmodified Do not reformat values, keeping leading whitespace
499 --value-length=SIZE Reserved space for numbers
500 -w, --width=COLUMNS Override the maximum number of columns to use
501 -h, --usage Overview of available options
502 --help Full pod documentation
503 -V, --version Version information
509 barcat - concatenate texts with graph to visualize values
513 B<barcat> [I<options>] [I<file>... | I<numbers>]
517 Visualizes relative sizes of values read from input
518 (parameters, file(s) or STDIN).
519 Contents are concatenated similar to I<cat>,
520 but numbers are reformatted and a bar graph is appended to each line.
522 It can has various options for input and output (re)formatting,
523 but remains limited to one-dimensional charts.
524 For more complex graphing needs
525 you'll need a larger animal like I<gnuplot>.
531 =item B<-a>, B<-->[B<no->]B<ascii>
533 Restrict user interface to ASCII characters,
534 replacing default UTF-8 by their closest approximation.
535 Input is always interpreted as UTF-8 and shown as is.
537 =item B<-C>, B<-->[B<no->]B<color>
539 Force colored output of values and bar markers.
540 Defaults on if output is a tty,
541 disabled otherwise such as when piped or redirected.
542 Can also be disabled by setting B<-M>
543 or the I<NO_COLOR> environment variable.
545 =item B<-c>, B<--count>
547 Omit repetitions and count the number of occurrences.
548 Similar to piping input through C<sort | uniq -c>
549 but keeping the order of first appearances.
551 Lines are omitted if they (or a specified field) are identical,
552 and the amount of matches is prepended and used as values
553 for bars and subsequent statistics.
555 =item B<-f>, B<--field>=([B<+>]I<number> | I<regexp>)
557 Compare values after a given number of whitespace separators,
558 or matching a regular expression.
560 Unspecified or B<-f0> means values are at the start of each line.
561 With B<-f1> the second word is taken instead.
562 A string can indicate the starting position of a value
563 (such as B<-f:> if preceded by colons),
564 or capture the numbers itself,
565 for example B<-f'(\d+)'> for the first digits anywhere.
566 A shorthand for this is C<+0>, or C<+N> to find the Nth number.
570 Prepend a chart axis with minimum and maximum values labeled.
572 =item B<-H>, B<--human-readable>
574 Format values using SI unit prefixes,
575 turning long numbers like C<12356789> into C<12.4M>.
576 Also changes an exponent C<1.602176634e-19> to C<160.2z>.
577 Short integers are aligned but kept without decimal point.
579 =item B<--sexagesimal>
581 Convert seconds to HH:MM:SS time format.
583 =item B<-t>, B<--interval>[=(I<seconds> | B<->I<lines>)]
585 Output partial progress every given number of seconds or input lines.
586 An update can also be forced by sending a I<SIGALRM> alarm signal.
588 =item B<-l>, B<--length>=[B<->]I<size>[B<%>]
590 Trim line contents (between number and bars)
591 to a maximum number of characters.
592 The exceeding part is replaced by an abbreviation sign,
593 unless B<--length=0>.
595 Prepend a dash (i.e. make negative) to enforce padding
596 regardless of encountered contents.
598 =item B<-L>, B<--limit>=[I<count> | [B<->]I<start>(B<->[I<end>] | B<+>I<count>)]
600 Select a range of lines to display.
601 A single integer indicates the last line number (like I<head>),
602 or first line counting from the bottom if negative (like I<tail>).
604 A range consists of a starting line number followed by either
605 a dash C<-> to an optional end, or plus sign C<+> with count.
607 All hidden input is still counted and analyzed for statistics,
608 but disregarded for padding and bar size.
610 =item B<-e>, B<--log>
612 Logarithmic (B<e>xponential) scale instead of linear
613 to compare orders of magnitude.
615 =item B<--graph-format>=I<character>
617 Glyph to repeat for the graph line.
618 Defaults to a dash C<->.
620 =item B<-m>, B<--markers>=I<format>
622 Statistical positions to indicate on bars.
623 A single indicator glyph precedes each position:
629 Exact value to match on the axis.
630 A vertical bar at the zero crossing is displayed by C<|0>
632 For example C<π3.14> would locate pi.
634 =item B</>I<interval>
636 Repeated at every multiple of a number.
637 For example C<:/1> for a grid at every integer.
639 =item I<percentage>B<v>
641 Ranked value at the given percentile.
642 The default shows C<+> at C<50v> for the mean or median;
643 the middle value or average between middle values.
644 One standard deviation right of the mean is at about C<68.3v>.
645 The default includes C<< >31.73v <68.27v >>
646 to encompass all I<normal> results, or 68% of all entries, by I<< <--> >>.
650 Matches the average (arithmetic mean);
651 the sum of all values divided by the number of counted lines.
652 Indicated by default as C<=>.
656 =item B<--min>=I<number>, B<--max>=I<number>
658 Bars extend from 0 or the minimum value if lower,
659 to the largest value encountered.
660 These options can be set to customize this range.
662 =item B<--palette>=(I<preset> | I<color>...)
664 Override colors of parsed numbers.
665 Can be any CSI escape, such as C<90> for default dark gray,
666 or alternatively C<1;30> for bright black.
668 In case of additional colors,
669 the last is used for values equal to the maximum, the first for minima.
670 If unspecified, these are green and red respectively (C<31 90 32>).
671 Multiple intermediate colors will be distributed
672 relative to the size of values.
674 A non-numeric name can refer to a predefined color scheme:
680 Minimal set of monochrome brightnesses.
684 Utilize the 24 grayscale ramp in 256-color terminals.
688 Gradient red to white in 7 out of 16 colors.
692 Extended to 17 colors out of 256.
696 Saturated red to green to blue to red.
700 All 215 extended colors in unrelated orders.
704 =item B<-_>, B<--spark>
706 Replace lines by I<sparklines>,
707 single characters (configured by B<--indicators>)
708 corresponding to input values.
710 =item B<--indicators>[=I<characters>]
712 Prefix a unicode character corresponding to each value.
713 The first specified character will be used for non-values,
714 the remaining sequence will be distributed over the range of values.
715 Unspecified, block fill glyphs U+2581-2588 will be used.
717 =item B<-s>, B<--stat>
719 Total statistics after all data.
721 While processing (possibly a neverending pipe),
722 intermediate results are also shown on signal I<SIGINFO> if available (control+t on BSDs)
723 or I<SIGQUIT> otherwise (ctrl+\ on linux).
725 =item B<-u>, B<--unmodified>
727 Do not reformat values, keeping leading whitespace.
728 Keep original value alignment, which may be significant in some programs.
730 =item B<--value-length>=I<size>
732 Reserved space for numbers.
734 =item B<-w>, B<--width>=I<columns>
736 Override the maximum number of columns to use.
737 Appended graphics will extend to fill up the entire screen,
738 otherwise determined by the environment variable I<COLUMNS>
739 or by running the I<tput> command.
741 =item B<-h>, B<--usage>
743 Overview of available options.
747 Full pod documentation
748 as rendered by perldoc.
750 =item B<-V>, B<--version>
760 seq 30 | awk '{print sin($1/10)}' | barcat
762 Compare file sizes (with human-readable numbers):
764 du -d0 -b * | barcat -H
766 Same from formatted results, selecting the first numeric value:
768 tree -s --noreport | barcat -H -f+
770 Compare media metadata, like image size or play time:
772 exiftool -T -p '$megapixels ($imagesize) $filename' * | barcat
774 exiftool -T -p '$duration# $avgbitrate# $filename' * | barcat --sexagesimal
776 find -type f -print0 | xargs -0 -L1 \
777 ffprobe -show_format -of json -v error |
778 jq -r '.format|.duration+" "+.bit_rate+" "+.filename' | barcat --sex
780 Memory usage of user processes with long names truncated:
782 ps xo rss,pid,cmd | barcat -l40
784 Monitor network latency from prefixed results:
786 ping google.com | barcat -f'time=\K' -t
788 Commonly used after counting, eg letter frequencies in text files:
790 cat /usr/share/games/fortunes/*.u8 |
791 perl -CS -nE 'say for grep length, split /\PL*/, uc' |
792 sort | uniq -c | barcat
794 Users on the current server while preserving order:
796 users | tr ' ' '\n' | barcat -c
798 Number of HTTP requests per day:
800 barcat -cf'\[([^:]+)' httpd/access.log
802 Any kind of database query results, preserving returned alignment:
804 echo 'SELECT sin(value * .1) FROM generate_series(0, 30) value' |
807 In PostgreSQL from within the client; a fancy C<\dt+> perhaps:
809 > SELECT schemaname, relname, pg_total_relation_size(relid)
810 FROM pg_statio_user_tables ORDER BY idx_blks_hit
813 Same thing in SQLite (requires the sqlite3 client):
816 > SELECT name, sum(pgsize) FROM dbstat GROUP BY 1;
818 Earthquakes worldwide magnitude 1+ in the last 24 hours:
820 curl https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_day.csv |
821 column -ts, -n | barcat -f4 -u -l80%
823 External datasets, like movies per year:
825 curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json -L |
826 jq .[].year | uniq -c | barcat
828 Pokémon height comparison:
830 curl https://github.com/Biuni/PokemonGO-Pokedex/raw/master/pokedex.json -L |
831 jq -r '.pokemon[] | [.height,.num,.name] | join(" ")' | barcat
833 USD/EUR exchange rate from CSV provided by the ECB:
835 curl https://sdw.ecb.europa.eu/export.do \
836 -Gd 'node=SEARCHRESULTS&q=EXR.D.USD.EUR.SP00.A&exportType=csv' |
837 barcat -f',\K' --value-length=7
839 Total population history in XML from the World Bank:
841 curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
842 xmlstarlet sel -t -m '*/*' -v wb:date -o ' ' -v wb:value -n |
843 barcat -f1 -H --markers=+/1e9
845 Population and other information for all countries:
847 curl http://download.geonames.org/export/dump/countryInfo.txt |
848 grep -v '^#\s' | column -ts$'\t' -n | barcat -f+2 -e -u -l150 -s
850 And of course various Git statistics, such commit count by year:
852 git log --pretty=%ci | cut -b-4 | uniq -c | barcat
854 Or the top 3 most frequent authors with statistics over all:
856 git shortlog -sn | barcat -L3 -s
858 Activity graph of the last days (substitute date C<-v-{}d> on BSD):
860 ( git log --pretty=%ci --since=30day | cut -b-10
861 seq 0 30 | xargs -i date +%F -d-{}day ) |
862 sort | uniq -c | awk '$1--' | barcat --spark
864 Sparkline graphics of simple input given as inline parameters:
866 barcat -_ 3 1 4 1 5 0 9 2 4
868 Misusing the spark functionality to draw a lolcat line:
870 seq $(tput cols) | barcat --spark --indicator=- --palette=rainbow
874 Mischa POSLAWSKY <perl@shiar.org>