ssh agent workaround for keychain (#1347)

* add solution for ssh keychain

* Update ssh_agent.md

* Update ssh_agent.md

* Update ssh_agent.md

* Update ssh_agent.md

Author: intellild

cookbook/ssh_agent.md

@@ -52,6 +52,21 @@ do --env {
 }
 ```
 
+### [Keychain](https://www.funtoo.org/Funtoo:Keychain)
+
+```nushell
+load-env (
+    keychain --eval --quiet <your ssh keys, eg. id_ed25519>
+    | lines
+    | split column ";"
+    | get column1
+    | first 2
+    | split column "="
+    | rename name value
+    | reduce -f {} {|it, acc| $acc | upsert $it.name $it.value }
+    )
+```
+
 ## Non-nushell workarounds
 
 However, the commonly recommended approach involves running an ssh-agent so it establishes an user-wide socket for processes to connect to.