[dot]: added copy & paste dot example graph

4 files changed, 150 insertions, 0 deletions

diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 97b62dd..8f87671 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -16,6 +16,7 @@
     - [radare2](./tools/radare2.md)
     - [qemu](./tools/qemu.md)
     - [pacman](./tools/pacman.md)
+    - [dot](./tools/dot.md)
 
 - [Resource analysis & monitor](./monitor/README.md)
     - [lsof](./monitor/lsof.md)
diff --git a/src/assets/g.svg b/src/assets/g.svg
new file mode 100644
index 0000000..f66c7b7
--- /dev/null
+++ b/src/assets/g.svg
@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 4.0.0 (0)
+ -->
+<!-- Pages: 1 -->
+<svg width="495pt" height="168pt"
+ viewBox="0.00 0.00 495.00 168.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 164)">
+<g id="clust2" class="cluster">
+<title>cluster_1</title>
+<polygon fill="transparent" stroke="black" points="383,-46 383,-152 479,-152 479,-46 383,-46"/>
+</g>
+<!-- stage1 -->
+<g id="node1" class="node">
+<title>stage1</title>
+<polygon fill="none" stroke="black" points="65,-62 0,-62 0,-26 65,-26 65,-62"/>
+<text text-anchor="middle" x="32.5" y="-40.3" font-family="Times,serif" font-size="14.00">stage1</text>
+</g>
+<!-- stage2 -->
+<g id="node2" class="node">
+<title>stage2</title>
+<polygon fill="none" stroke="black" points="167,-62 102,-62 102,-26 167,-26 167,-62"/>
+<text text-anchor="middle" x="134.5" y="-40.3" font-family="Times,serif" font-size="14.00">stage2</text>
+</g>
+<!-- stage1&#45;&gt;stage2 -->
+<g id="edge1" class="edge">
+<title>stage1&#45;&gt;stage2</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M65.14,-44C73.53,-44 82.72,-44 91.57,-44"/>
+<polygon fill="red" stroke="red" points="91.72,-47.5 101.72,-44 91.72,-40.5 91.72,-47.5"/>
+</g>
+<!-- stage3_1 -->
+<g id="node3" class="node">
+<title>stage3_1</title>
+<polygon fill="none" stroke="black" points="284,-90 204,-90 204,-54 284,-54 284,-90"/>
+<text text-anchor="middle" x="244" y="-68.3" font-family="Times,serif" font-size="14.00">stage3_1</text>
+</g>
+<!-- stage2&#45;&gt;stage3_1 -->
+<g id="edge2" class="edge">
+<title>stage2&#45;&gt;stage3_1</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M167.17,-52.25C175.63,-54.45 184.97,-56.89 194.13,-59.27"/>
+<polygon fill="red" stroke="red" points="193.37,-62.69 203.93,-61.82 195.14,-55.92 193.37,-62.69"/>
+</g>
+<!-- stage3_2 -->
+<g id="node4" class="node">
+<title>stage3_2</title>
+<polygon fill="none" stroke="black" points="284,-36 204,-36 204,0 284,0 284,-36"/>
+<text text-anchor="middle" x="244" y="-14.3" font-family="Times,serif" font-size="14.00">stage3_2</text>
+</g>
+<!-- stage2&#45;&gt;stage3_2 -->
+<g id="edge3" class="edge">
+<title>stage2&#45;&gt;stage3_2</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M167.17,-36.34C175.63,-34.29 184.97,-32.03 194.13,-29.82"/>
+<polygon fill="red" stroke="red" points="195.04,-33.2 203.93,-27.45 193.39,-26.4 195.04,-33.2"/>
+</g>
+<!-- stage5_1 -->
+<g id="node6" class="node">
+<title>stage5_1</title>
+<polygon fill="none" stroke="black" points="471,-144 391,-144 391,-108 471,-108 471,-144"/>
+<text text-anchor="middle" x="431" y="-122.3" font-family="Times,serif" font-size="14.00">stage5_1</text>
+</g>
+<!-- stage3_1&#45;&gt;stage5_1 -->
+<g id="edge5" class="edge">
+<title>stage3_1&#45;&gt;stage5_1</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M284.23,-83.45C312.44,-91.69 350.67,-102.84 380.9,-111.67"/>
+<polygon fill="red" stroke="red" points="380.24,-115.12 390.82,-114.56 382.2,-108.4 380.24,-115.12"/>
+</g>
+<!-- stage5_2 -->
+<g id="node7" class="node">
+<title>stage5_2</title>
+<polygon fill="none" stroke="black" points="471,-90 391,-90 391,-54 471,-54 471,-90"/>
+<text text-anchor="middle" x="431" y="-68.3" font-family="Times,serif" font-size="14.00">stage5_2</text>
+</g>
+<!-- stage3_1&#45;&gt;stage5_2 -->
+<g id="edge6" class="edge">
+<title>stage3_1&#45;&gt;stage5_2</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M284.23,-72C312.32,-72 350.34,-72 380.51,-72"/>
+<polygon fill="red" stroke="red" points="380.82,-75.5 390.82,-72 380.82,-68.5 380.82,-75.5"/>
+</g>
+<!-- stage4 -->
+<g id="node5" class="node">
+<title>stage4</title>
+<polygon fill="lightgray" stroke="green" stroke-dasharray="5,2" points="458,-36 404,-36 404,0 458,0 458,-36"/>
+<text text-anchor="middle" x="431" y="-14.3" font-family="Times,serif" font-size="14.00">s4</text>
+</g>
+<!-- stage3_2&#45;&gt;stage4 -->
+<g id="edge4" class="edge">
+<title>stage3_2&#45;&gt;stage4</title>
+<path fill="none" stroke="red" stroke-dasharray="1,5" d="M284.23,-18C316.63,-18 362.26,-18 393.8,-18"/>
+<polygon fill="red" stroke="red" points="393.91,-21.5 403.91,-18 393.91,-14.5 393.91,-21.5"/>
+<text text-anchor="middle" x="337.5" y="-21.8" font-family="Times,serif" font-size="14.00">some text</text>
+</g>
+</g>
+</svg>
diff --git a/src/tools/README.md b/src/tools/README.md
index 8d3baa6..d6b0a21 100644
--- a/src/tools/README.md
+++ b/src/tools/README.md
@@ -13,3 +13,4 @@
 - [radare2](./radare2.md)
 - [qemu](./qemu.md)
 - [pacman](./pacman.md)
+- [dot](./dot.md)
diff --git a/src/tools/dot.md b/src/tools/dot.md
new file mode 100644
index 0000000..d3d7ac8
--- /dev/null
+++ b/src/tools/dot.md
@@ -0,0 +1,54 @@
+# dot(1)
+
+Example `dot` file to copy & paste from.
+
+Can be rendered to `svg` with the following command.
+```bash
+dot -T svg -o g.svg g.dot
+```
+
+Example `dot` file.
+```dot
+// file: g.dot
+digraph {
+    // Render ranks from left to right.
+    rankdir=LR
+    // Make background transparent.
+    bgcolor=transparent
+
+    // Global node attributes.
+    node [shape=box]
+    // Global edge attributes.
+    edge [style=dotted,color=red]
+
+    // Add nodes & edge.
+    stage1 -> stage2
+    // Add multiple edges at once.
+    stage2 -> { stage3_1, stage3_2 }
+    // Add edge with custom attributes.
+    stage3_2 -> stage4 [label="some text"]
+
+    // Set custom attributes for specific node.
+    stage4 [color=green,fillcolor=lightgray,style="filled,dashed",label="s4"]
+
+    // Create a subgraph. This can be used to group nodes/edges or as scope for
+    // global node/edge attributes.
+    // If the name starts with 'cluster' a border is drawn.
+    subgraph cluster_1 {
+        stage5_1
+        stage5_2
+    }
+
+    // Add some edges to subgraph nodes.
+    stage3_1 -> { stage5_1, stage5_2 }
+}
+```
+
+Rendered `svg` file.
+![g.svg](/assets/g.svg)
+
+## References
+- [DOT language](https://graphviz.org/doc/info/lang.html)
+- [Attributes](https://graphviz.org/doc/info/attrs.html)
+- [Node shapes](https://graphviz.org/doc/info/shapes.html)
+- [Colors](https://graphviz.org/doc/info/colors.html)