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--- vps_-_plan9front_-_ed_network_configuration [2021/09/29 00:32] – created hc9
+++ vps_-_plan9front_-_ed_network_configuration [2022/07/19 19:30] – [rc: the Plan 9 shell] shriver
@@ Line 1: / Line 1: @@
-====== ed, network configuration ======
+====== rc, ed, network configuration ======
+===== rc: the  Plan 9 shell =====
+    * **ctl-h** is backspace, kind of; **ctl-u** erases the current line. As seen, with the VPS Plan 9 console prompt **ctl-h** backspace, the screen output may not be what one would expect<sup>1</sup>.
+    * To detach the Plan 9 console prompt (%), while retaining the ability to reattach it __without__ rebooting your server, press **ctl-]** to close the prompt (%). Then, press '**q**' to disconnect the VPS Maintenance Shell menu, and ssh connection. You can return again with another [[:vps_-_plan9front_-_plan_9_instance_under_xen#default_pre-generated_installation|ssh]] to the allocated VPS server, an SDF VPS Maintenance Shell menu review, and a press on the "**c**" key to connect to the Plan 9 console prompt (%).
+    * //**ed**// and "''% sam -d''" are available in the Plan 9 Image. They may be used for setting the DNS, or other tasks from the Plan 9 VPS console prompt (%), before Drawterm is accessible. An [[http://sdf.org/?tutorials/ed | ed cheat-sheet]] is available. Additional editors are operational from a [[:vps_-_plan9front_-_drawterm_rio_and_stats#drawterm|Drawterm]] Rio rc prompt: acme, [[:vps_-_plan9front_-_acme_sam_abaco_mothra_and_man#sam|sam]], or ''% sam -d''.
+|% [[:vps_-_plan9front_-_acme_sam_abaco_mothra_and_man#sam|sam -d]]| Editing will be done with the command language only, as in //ed//.|
+=== Configuring a dynamic prompt ===
+To have a prompt that shows your pwd and user name, add the following lines to your lib/profile. Place them in the 'case cpu' section replacing the cpu% prompt line
+<code>
+prompt=('['^`{pwd}^'] '^$sysname^'% ' ' ')
+fn cd {builtin cd $* && prompt=('['^`{pwd}^'] '^$sysname^'% ' ' ')}
+</code>
+These lines update the prompt, and replace the 'cd' command so that the prompt is updated each time you change a directory.
+===== ed =====
+Ed is a text editor, and similar to [[:vps_-_plan9front_-_acme_sam_abaco_mothra_and_man#sam|sam -d]]. Using the ''% sam -d'' examples from [[:vps_-_plan9front_-_acme_sam_abaco_mothra_and_man#sam|Sam]], it's possible to use ''% ed''. The mentioned examples are from a Drawterm Rio rc prompt.
+<code>
+  % cd samtest
+  % cp /lib/ndb/local local-1ed
+</code>
+<code>
+  % ed local-1ed
+
+  /ip=
+  ip=127.0.0.1 sys=localhost dom=localhost
+  s/ip=/#ip=
+  #ip=127.0.0.1 sys=localhost dom=localhost
+  $
+  #ip=127.0.0.1 sys=localhost dom=localhost
+  a
+  ip=YOUR_IP sys=plan9 dom=plan9 dns=205.166.94.20
+  .
+  w
+
+  q
+  %
+</code>
+<code>
+  % cp /rc/bin/termrc.local termrc.local-1ed
+  % ed termrc.local-1ed
+</code>
+<code>
+  % ed termrc.local-1ed
+
+  $
+  cpu=CP
+  a
+  ip/ipconfig -g 205.166.94.1 ether /net/ether0 YOUR_IP 255.255.255.0
+  ndb/cs
+  ndb/dns -r
+  .
+  w
+
+  q
+  %
+</code>
+^Command^ Title^ Quick Reference^
+|ED|ed Cheat Sheet|http://sdf.org/?tutorials/ed|
+=== network configuration ===
+<sup>1</sup> [[http://sdf.org/?tutorials/Plan_9_rc|Control keys -- Available at the SDF Boot Camp VPS server console prompt]]
+Editor reference:
+|Sam, Ed, Acme|https://wiki.sdf.org/doku.php?id=vps_-_9front#editors|
+|Plan 9 Rc Survival Guide|http://sdf.org/?tutorials/Plan_9_rc|
+|[[http://doc.cat-v.org/plan_9/2nd_edition/README.html|README (slightly outdated)]] //If you think of it as UNIX, you'll often be frustrated because something doesn't exist or works differently//.|