navi: Add some cheat sheets

navi/misc.cheat

@@ -0,0 +1,40 @@
+% misc
+
+# Update system
+sudo apt update && sudo apt upgrade
+
+# Clean APT
+sudo apt autoclean && sudo apt autoremove
+
+# List users
+cat /etc/passwd | awk -F: '{ print $1}'
+
+# User information
+sudo id <user>
+
+# Change user password
+sudo passwd <user>
+
+# Create user with home
+sudo useradd -m <username>
+
+# Create user without home
+sudo useradd <username>
+
+# Delete an user
+sudo deluser <user>
+
+# List all groups
+cat /etc/group
+
+# Add user to group
+sudo usermod -a -G <group> <user>
+
+# Remove user from a group
+sudo deluser <user> <group>
+
+# Port binding
+sudo lsof -i:<port>
+
+$ user: cat /etc/passwd | awk -F: '{ print $1}'
+$ group: cat /etc/group | awk -F: '{ print $1}'