diff --git a/cheat/cheatsheets/journalctl b/cheat/cheatsheets/journalctl
index 6c00e7f..793dd18 100644
--- a/cheat/cheatsheets/journalctl
+++ b/cheat/cheatsheets/journalctl
@@ -19,3 +19,14 @@ journalctl /usr/bin/dbus-daemon
 # Filter by PID
 journalctl _PID=123
 
+# Filter by Command, e.g., sshd
+journalctl _COMM=sshd
+
+# Filter by Command and time period
+journalctl _COMM=crond --since '10:00' --until '11:00'
+
+# List all available boots 
+journalctl --list-boots
+
+# Filter by specific User ID e.g., user id 1000 
+journalctl _UID=1000
\ No newline at end of file
diff --git a/cheat/cheatsheets/p4 b/cheat/cheatsheets/p4
new file mode 100644
index 0000000..0ec6a25
--- /dev/null
+++ b/cheat/cheatsheets/p4
@@ -0,0 +1,5 @@
+# Print details related to Client and server configuration
+p4 info 
+
+# Open a file and add it to depot
+p4 add <filename>
\ No newline at end of file
diff --git a/cheat/cheatsheets/udisksctl b/cheat/cheatsheets/udisksctl
new file mode 100644
index 0000000..2cd929b
--- /dev/null
+++ b/cheat/cheatsheets/udisksctl
@@ -0,0 +1,11 @@
+# Get info about block device
+udisksctl info -b <block_device>
+
+# Mounting device 
+udisksctl mount --block-device <block_device>
+
+# Unmounting device 
+udisksctl unmount --block-device <block_device>
+
+# Get help 
+udisksctl help 
diff --git a/cheat/cheatsheets/zoneadm b/cheat/cheatsheets/zoneadm
new file mode 100644
index 0000000..b33fbfb
--- /dev/null
+++ b/cheat/cheatsheets/zoneadm
@@ -0,0 +1,22 @@
+# Halt zone
+zoneadm -z <zone_name> halt
+
+# Delete Zone 
+zoneadm -z <zone_name> halt
+zoneadm -z <zone_name> uninstall
+
+# Verify Zone
+zoneadm -z <zone_name> verify
+
+# Installing Zone 
+zoneadm -z <zone_name> install
+
+# Boot Zone
+zoneadm -z <zone_name> boot
+
+# Reboot Zone
+zoneadm -z <zone_name> reboot
+
+# List Zones
+zoneadm list -cv
+