mjhjmtu

I'm currently trying to wireup text parts to describe some thing like Unix file permissions or the output of an

ls -al

But I have no clue how I can create something like this:

I was thinking about using path or node from TikZ

But I didn`t get it to work out.

You mean something like this?

documentclass[tikz]standalone
usetikzlibrarycalc
begindocument
begintikzpicture[blue]
node (a) at (0,0) -;
node (b) at (1,0) rwx;
node (c) at (2,0) rw-;
node (d) at (3,0) r---;
draw (a.south west)--(a.south east);
draw (b.south west)--(b.south east);
draw (c.south west)--(c.south east);
draw (d.south west)--(d.south east);
draw (d.south)--($(d.south)+(0,-1)$)--($(d.south)+(1,-1)$) node[right,align=left,font=scriptsizesffamily] Read, write and execute\permissions for all other users;
draw (c.south)--($(c.south)+(0,-2)$)--($(c.south)+(2,-2)$) node[right,align=left,font=scriptsizesffamily] Read, write and execute permissions for\members of the group owning the file;
draw (b.south)--($(b.south)+(0,-3)$)--($(b.south)+(3,-3)$) node[right,align=left,font=scriptsizesffamily] Read, write and execute permissions\for the owner of the file;
draw (a.south)--($(a.south)+(0,-4)$)--($(a.south)+(4,-4)$) node[right,align=left,font=scriptsizesffamily] File type: ``---'' means a file.\``d'' means a directory;
endtikzpicture
enddocument

I basically stole JouleV's answer and revised it to use relative positioning and pack the nodes closer together. Specifically, the gap between the text of two adjacent nodes is 2 times inner sep. Unfortunately, inner sep is also added to the lines under the text, so there I had to reduce inner xsep and increase the separation using [right=4pt].

BTW, the default for inner sep is 0.333em.

documentclass[tikz]standalone
usetikzlibrarycalc
begindocument
begintikzpicture[blue]
beginscope[every node/.style=inner xsep=0pt, inner ysep=2pt]
 node (a) -;
 node[right=4pt] (b) at (a.east) rwx;
 node[right=4pt] (c) at (b.east) rw-;
 node[right=4pt] (d) at (c.east) r---;
endscope
beginscope[every node/.style=below right, align=left, font=scriptsizesffamily]
 node (e) at (d.south east) Read, write and execute\permissions for all other users;
 node (f) at (e.south west) Read, write and execute permissions for\members of the group owning the file;
 node (g) at (f.south west) Read, write and execute permissions\for the owner of the file;
 node (h) at (g.south west) File type: ``---'' means a file.\``d'' means a directory;
endscope
draw (a.south west)--(a.south east)
 (b.south west)--(b.south east)
 (c.south west)--(c.south east)
 (d.south west)--(d.south east)
 (a.south) |- (h.west)
 (b.south) |- (g.west)
 (c.south) |- (f.west)
 (d.south) |- (e.west);
endtikzpicture
enddocument