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dtree

Command line program to draw trees

For installation instructions, see the file INSTALL.

INSTALL

Examples

Format a tree using double-stroke box drawing characters:

printf "A\n\tB\n\t\tC\n\tD\n" | dtree -sd

tree(1) replacement:

find . -print | sed -E "s,[^/]+/,$(printf '\t'),g" | dtree

same, using ASCII characters:

find . -print | sed -E "s,[^/]+/,$(printf '\t'),g" | dtree -sa

poor man's findmnt(1) (depends on having /proc/mounts active):

sort -k2 /proc/mounts |
awk '{				# pp = previous pointer
	sl = $2;
	gsub("[^/]", "", sl);
	slashc = length(sl);	# slash count
	if ($2 != "/" &&
		slashc > prevsc[pp] &&
		substr($2,0,length(prev[pp])) == prev[pp])
	{
		for (i = 0; i < pp+1; i++)
			printf "\t";
		pp++;
	}
	else if ($2 != "/")
	{
		if (slashc < prevsc[pp] &&
			substr($2,0,length(prev[pp-1])) != prev[pp-1])
			pp--;
		for (i = 0; i < pp; i++)
			printf "\t";
	}
	print $2;
	prev[pp] = $2;		# previous mountpoint
	prevsc[pp] = slashc;	# previous slash count
}' |
dtree

Prerequisites

C compiler - defaults in config.redo

Optional

gzip (autodetected, for manpage compression)

Install

$ git clone https://git.sr.ht/~strahinja/dtree
$ cd dtree
$ su

If you have djb redo:

# redo install

if you don't:

# ./do install

Persistent build configuration file

The file config.redo will be sourced when building targets which also accept configuration through environment variables. For example, CC and PREFIX are specified in config.redo.

OpenBSD

Replace gcc in CC with cc and add -D_BSD_SOURCE, eg:

# CC='cc -g -Wall -pedantic -std=c99 -D_POSIX_C_SOURCE=200809L
	-D_XOPEN_SOURCE=700 -D_BSD_SOURCE}' \
	./do install

and change MANPREFIX to

MANPREFIX=$PREFIX/man

License

dtree - Command line program to draw trees

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

https://www.gnu.org/licenses/

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