diff --git a/notebook/it/Tools/Firejail.md b/notebook/Linux/Tools/Firejail.md
similarity index 100%
rename from notebook/it/Tools/Firejail.md
rename to notebook/Linux/Tools/Firejail.md
diff --git a/notebook/it/Tools/Taskwarrior.md b/notebook/Linux/Tools/Taskwarrior.md
similarity index 100%
rename from notebook/it/Tools/Taskwarrior.md
rename to notebook/Linux/Tools/Taskwarrior.md
diff --git a/notebook/Linux/Tools/ldd.md b/notebook/Linux/Tools/ldd.md
new file mode 100644
index 0000000..b3bed49
--- /dev/null
+++ b/notebook/Linux/Tools/ldd.md
@@ -0,0 +1,4 @@
+---
+tags: library linking
+---
+Prints shared object dependencies.
\ No newline at end of file
diff --git a/notebook/it/Tools/lnav.md b/notebook/Linux/Tools/lnav.md
similarity index 63%
rename from notebook/it/Tools/lnav.md
rename to notebook/Linux/Tools/lnav.md
index d561a15..0212e33 100644
--- a/notebook/it/Tools/lnav.md
+++ b/notebook/Linux/Tools/lnav.md
@@ -1 +1,4 @@
+---
+tags: debugging logs
+---
 [lnav](https://lnav.org) is a #terminal logfile viewer based on #curses.
\ No newline at end of file
diff --git a/notebook/Linux/Tools/nm.md b/notebook/Linux/Tools/nm.md
new file mode 100644
index 0000000..43f85dd
--- /dev/null
+++ b/notebook/Linux/Tools/nm.md
@@ -0,0 +1,4 @@
+---
+tags: library linking
+---
+Lists symbols in object files
\ No newline at end of file