diff --git a/navi/misc.cheat b/navi/misc.cheat
index fd9eb8b..e7d784f 100644
--- a/navi/misc.cheat
+++ b/navi/misc.cheat
@@ -36,7 +36,10 @@ sudo usermod -a -G <group> <user>
 # Remove user from a group
 sudo deluser <user> <group>
 
-# Port binding
+# List port bindings
+sudo lsof -i -P -n | grep LISTEN
+
+# Show binding on a port
 sudo lsof -i:<port>
 
 # Get IP on interface
@@ -51,6 +54,9 @@ meld <(hexdump -C <file_1>) <(hexdump -C <file_2>)
 # Compare 2 files (bcompare)
 bcompare <file_1> <file_2>
 
+# Replace expression in files
+ack -rl "<expression>" | xargs sed -i 's#<expression>#<replace_expression>#g'
+
 # Disable Bluetooth ERTM
 sudo bash -c "echo Y > /sys/module/bluetooth/parameters/disable_ertm"