Update cheatsheets

linux/ip-route

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ip route
+
+> IP Routing table management subcommand.
+> More information: <https://manned.org/ip-route>.
+
+- Display the routing table:
+
+`ip route {{show|list}}`
+
+- Add a default route using gateway forwarding:
+
+`sudo ip route add default via {{gateway_ip}}`
+
+- Add a default route using `eth0`:
+
+`sudo ip route add default dev {{eth0}}`
+
+- Add a static route:
+
+`sudo ip route add {{destination_ip}} via {{gateway_ip}} dev {{eth0}}`
+
+- Delete a static route:
+
+`sudo ip route del {{destination_ip}} dev {{eth0}}`
+
+- Change or replace a static route:
+
+`sudo ip route {{change|replace}} {{destination_ip}} via {{gateway_ip}} dev {{eth0}}`
+
+- Show which route will be used by the kernel to reach an IP address:
+
+`ip route get {{destination_ip}}`