Update cheatsheets

tldr/linux/dockerd

@@ -14,16 +14,16 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Run Docker daemon and configure it to listen to specific sockets (UNIX and TCP):
 
-`dockerd --host unix://{{path/to/tmp.sock}} --host tcp://{{ip}}`
+`dockerd {{[-H|--host]}} unix://{{path/to/tmp.sock}} {{[-H|--host]}} tcp://{{ip}}`
 
 - Run with specific daemon PID file:
 
-`dockerd --pidfile {{path/to/pid_file}}`
+`dockerd {{[-p|--pidfile]}} {{path/to/pid_file}}`
 
 - Run in debug mode:
 
-`dockerd --debug`
+`dockerd {{[-D|--debug]}}`
 
 - Run and set a specific log level:
 
-`dockerd --log-level {{debug|info|warn|error|fatal}}`
+`dockerd {{[-l|--log-level]}} {{debug|info|warn|error|fatal}}`

tldr/linux/gamescope

@@ -28,6 +28,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `gamescope {{[-e|--steam]}} -- /usr/bin/steam -tenfoot`
 
+- Specify which display to prefer:
+
+`gamescope {{[-O|--prefer-output]}} {{HDMI-A-1,DP-3,...}} -- {{program}}`
+
 - Toggle fullscreen:
 
 `<Super f>`

tldr/linux/ip

@@ -31,12 +31,12 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Make an interface up/down:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{interface_name}} {{up|down}}`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} {{up|down}}`
 
 - Add/Delete an IP address to an interface:
 
-`sudo ip {{[a|address]}} {{add|delete}} {{ip}}/{{mask}} dev {{interface_name}}`
+`sudo ip {{[a|address]}} {{add|delete}} {{ip}}/{{mask}} dev {{ethX}}`
 
 - Add a default route:
 
-`sudo ip {{[r|route]}} {{[a|add]}} default via {{ip}} dev {{interface_name}}`
+`sudo ip {{[r|route]}} {{[a|add]}} default via {{ip}} dev {{ethX}}`

tldr/linux/ip-address

@@ -18,16 +18,16 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Display information about a specific network interface:
 
-`ip {{[a|address]}} {{[s|show]}} {{eth0}}`
+`ip {{[a|address]}} {{[s|show]}} {{ethX}}`
 
 - Add an IP address to a network interface:
 
-`sudo ip {{[a|address]}} {{[a|add]}} {{ip_address}} dev {{eth0}}`
+`sudo ip {{[a|address]}} {{[a|add]}} {{ip_address}} dev {{ethX}}`
 
 - Remove an IP address from a network interface:
 
-`sudo ip {{[a|address]}} {{[d|delete]}} {{ip_address}} dev {{eth0}}`
+`sudo ip {{[a|address]}} {{[d|delete]}} {{ip_address}} dev {{ethX}}`
 
 - Delete all IP addresses in a given scope from a network interface:
 
-`sudo ip {{[a|address]}} {{[f|flush]}} {{eth0}} scope {{global|host|link}}`
+`sudo ip {{[a|address]}} {{[f|flush]}} {{ethX}} scope {{global|host|link}}`

tldr/linux/ip-link

@@ -14,24 +14,24 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Show information about a specific network interface:
 
-`ip {{[l|link]}} {{[sh|show]}} {{ethN}}`
+`ip {{[l|link]}} {{[sh|show]}} {{ethX}}`
 
 - Bring a network interface up or down:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{ethN}} {{up|down}}`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} {{up|down}}`
 
 - Give a meaningful name to a network interface:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{ethN}} {{[al|alias]}} "{{LAN Interface}}"`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} {{[al|alias]}} "{{LAN Interface}}"`
 
 - Change the MAC address of a network interface:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{ethN}} {{[a|address]}} {{ff:ff:ff:ff:ff:ff}}`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} {{[a|address]}} {{ff:ff:ff:ff:ff:ff}}`
 
 - Change the MTU size for a network interface to use jumbo frames:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{ethN}} mtu {{9000}}`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} mtu {{9000}}`
 
 - Set the promisc mode status of a device:
 
-`sudo ip {{[l|link]}} {{[s|set]}} {{ethN}} promisc {{on|off}}`
+`sudo ip {{[l|link]}} {{[s|set]}} {{ethX}} promisc {{on|off}}`

tldr/linux/ip-maddress

@@ -14,15 +14,15 @@ source: https://github.com/tldr-pages/tldr.git
 
 - List device specific addresses:
 
-`ip {{[m|maddress]}} {{[s|show]}} dev {{eth0}}`
+`ip {{[m|maddress]}} {{[s|show]}} dev {{ethX}}`
 
 - Join a multicast group statically:
 
-`sudo ip {{[m|maddress]}} {{[a|add]}} {{33:33:00:00:00:02}} dev {{eth0}}`
+`sudo ip {{[m|maddress]}} {{[a|add]}} {{33:33:00:00:00:02}} dev {{ethX}}`
 
 - Leave a static multicast group:
 
-`sudo ip {{[m|maddress]}} {{[d|delete]}} {{33:33:00:00:00:02}} dev {{eth0}}`
+`sudo ip {{[m|maddress]}} {{[d|delete]}} {{33:33:00:00:00:02}} dev {{ethX}}`
 
 - Display help:
 

tldr/linux/ip-neighbour

@@ -12,18 +12,18 @@ source: https://github.com/tldr-pages/tldr.git
 
 `ip {{[n|neighbour]}}`
 
-- Remove entries in the neighbour table on device `eth0`:
+- Remove entries in the neighbour table on device `ethX`:
 
-`sudo ip {{[n|neighbour]}} {{[f|flush]}} dev {{eth0}}`
+`sudo ip {{[n|neighbour]}} {{[f|flush]}} dev {{ethX}}`
 
 - Perform a neighbour lookup and return a neighbour entry:
 
-`ip {{[n|neighbour]}} {{[g|get]}} {{lookup_ip}} dev {{eth0}}`
+`ip {{[n|neighbour]}} {{[g|get]}} {{lookup_ip}} dev {{ethX}}`
 
-- Add or delete an ARP entry for the neighbour IP address to `eth0`:
+- Add or delete an ARP entry for the neighbour IP address to `ethX`:
 
-`sudo ip {{[n|neighbour]}} {{add|delete}} {{ip_address}} lladdr {{mac_address}} dev {{eth0}} nud reachable`
+`sudo ip {{[n|neighbour]}} {{add|delete}} {{ip_address}} lladdr {{mac_address}} dev {{ethX}} nud reachable`
 
-- Change or replace an ARP entry for the neighbour IP address to `eth0`:
+- Change or replace an ARP entry for the neighbour IP address to `ethX`:
 
-`sudo ip {{[n|neighbour]}} {{change|replace}} {{ip_address}} lladdr {{new_mac_address}} dev {{eth0}}`
+`sudo ip {{[n|neighbour]}} {{change|replace}} {{ip_address}} lladdr {{new_mac_address}} dev {{ethX}}`

tldr/linux/ip-route

@@ -16,21 +16,21 @@ source: https://github.com/tldr-pages/tldr.git
 
 `sudo ip {{[r|route]}} {{[a|add]}} default via {{gateway_ip}}`
 
-- Add a default route using `eth0`:
+- Add a default route using `ethX`:
 
-`sudo ip {{[r|route]}} {{[a|add]}} default dev {{eth0}}`
+`sudo ip {{[r|route]}} {{[a|add]}} default dev {{ethX}}`
 
 - Add a static route:
 
-`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} via {{gateway_ip}} dev {{eth0}}`
+`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} via {{gateway_ip}} dev {{ethX}}`
 
 - Delete a static route:
 
-`sudo ip {{[r|route]}} {{[d|delete]}} {{destination_ip}} dev {{eth0}}`
+`sudo ip {{[r|route]}} {{[d|delete]}} {{destination_ip}} dev {{ethX}}`
 
 - Change or replace a static route:
 
-`sudo ip {{[r|route]}} {{change|replace}} {{destination_ip}} via {{gateway_ip}} dev {{eth0}}`
+`sudo ip {{[r|route]}} {{change|replace}} {{destination_ip}} via {{gateway_ip}} dev {{ethX}}`
 
 - Show which route will be used by the kernel to reach an IP address:
 

tldr/linux/ip-route-add

@@ -12,14 +12,14 @@ source: https://github.com/tldr-pages/tldr.git
 
 `sudo ip {{[r|route]}} {{[a|add]}} default via {{gateway_ip}}`
 
-- Add a default route using `eth0`:
+- Add a default route using `ethX`:
 
-`sudo ip {{[r|route]}} {{[a|add]}} default dev {{eth0}}`
+`sudo ip {{[r|route]}} {{[a|add]}} default dev {{ethX}}`
 
 - Add a static route:
 
-`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} via {{gateway_ip}} dev {{eth0}}`
+`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} via {{gateway_ip}} dev {{ethX}}`
 
 - Add a route to a specific routing table:
 
-`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} dev {{eth0}} {{[t|table]}} {{ip}}`
+`sudo ip {{[r|route]}} {{[a|add]}} {{destination_ip}} dev {{ethX}} {{[t|table]}} {{ip}}`

tldr/linux/ip-route-get

@@ -18,11 +18,11 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Print route to a destination for packets arriving on a specific interface:
 
-`ip {{[r|route]}} {{[g|get]}} {{destination}} iif {{eth0}}`
+`ip {{[r|route]}} {{[g|get]}} {{destination}} iif {{ethX}}`
 
 - Print route to a destination, forcing output through a specific interface:
 
-`ip {{[r|route]}} {{[g|get]}} {{destination}} oif {{eth1}}`
+`ip {{[r|route]}} {{[g|get]}} {{destination}} oif {{ethX}}`
 
 - Print route to a destination with a specified Type of Service (ToS):
 

tldr/linux/ip-route-list

@@ -26,7 +26,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - List routes from a given device only:
 
-`ip {{[r|route]}} {{[l|list]}} dev {{eth0}}`
+`ip {{[r|route]}} {{[l|list]}} dev {{ethX}}`
 
 - List routes within a given scope:
 

tldr/linux/ldd

@@ -15,16 +15,16 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Display all information about dependencies:
 
-`ldd --verbose {{path/to/binary}}`
+`ldd {{[-v|--verbose]}} {{path/to/binary}}`
 
 - Display unused direct dependencies:
 
-`ldd --unused {{path/to/binary}}`
+`ldd {{[-u|--unused]}} {{path/to/binary}}`
 
 - Report missing data objects and perform data relocations:
 
-`ldd --data-relocs {{path/to/binary}}`
+`ldd {{[-d|--data-relocs]}} {{path/to/binary}}`
 
 - Report missing data objects and functions, and perform relocations for both:
 
-`ldd --function-relocs {{path/to/binary}}`
+`ldd {{[-r|--function-relocs]}} {{path/to/binary}}`

tldr/linux/nl

@@ -14,7 +14,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Read from `stdin`:
 
-`{{command}} | nl -`
+`{{command}} | nl`
 
 - Number [a]ll body lines including blank lines or do [n]ot number body lines:
 

tldr/linux/sfill

@@ -12,18 +12,18 @@ source: https://github.com/tldr-pages/tldr.git
 
 `sfill {{/path/to/mounted_disk_directory}}`
 
-- Overwrite free space and inodes of a disk with 6 writes (fast but less secure) and show status:
+- Overwrite free space and inodes of a disk with 6 writes (fast but [l]ess secure) and show status ([v]erbose):
 
 `sfill -l -v {{/path/to/mounted_disk_directory}}`
 
-- Overwrite free space and inodes of a disk with 1 write (very fast but insecure) and show status:
+- Overwrite free space and inodes of a disk with 1 write (very fast but [l]ess secure [v]erbose) and show status:
 
 `sfill -ll -v {{/path/to/mounted_disk_directory}}`
 
-- Overwrite only free space of a disk:
+- Overwrite only free space of a d[I]sk:
 
 `sfill -I {{/path/to/mounted_disk_directory}}`
 
-- Overwrite only free inodes of a disk:
+- Overwrite only free [i]nodes of a disk:
 
 `sfill -i {{/path/to/mounted_disk_directory}}`