Differences

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--- other:newppl:starting [2024/03/20 11:27] – [Determining the load of a Linux server] Added details about TIME and mem usage jypeter
+++ other:newppl:starting [2024/04/24 14:37] – [Using module to access optional programs] Improved jypeter
@@ Line 220: / Line 220: @@
 $ hostname
 obelix5</code>
+    * In a python script, you can use the following to get some information
+      * <code>>>> import os
+>>> os.getlogin(), os.getenv('HOST')
+('mylogin', 'obelix5')</code>
   * **[[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|The LSCE cluster]]** (aka the //batch system//)\\ Use this cluster for **//heavy duty// programs**, rather than killing the multi-users interactive servers
@@ Line 445: / Line 449: @@
 ==== Using module to access optional programs ====
-Main ''module'' options:
+Most useful ''[[https://modules.readthedocs.io/|module]]'' options:
   * ''module list'': list the currently loaded modules
-  * ''module avail'': list the available modules
+  * ''module avail [mod_name]'': list the available modules (or only the ones with a name starting with ''mod_name'')
   * ''module load module_a ... module_n'': load modules (automatically including dependencies)
     * ''module load module_a'': load default version of //module_a//
@@ Line 460: / Line 464: @@
 No Modulefiles Currently Loaded.
- > module avail
+ > module avail ncview
-[...]
+ncview/2.1.7
-batch_env          grib_api/1.14.0    netcdf/4           python/3.6
-[...]
-glost/0.3.1        ncview/2.1.7       python/2.7
  > module load ncview netcdf/4
@@ Line 497: / Line 498: @@
 There are **lots of text editors available** on Linux computers/servers (''emacs'', ''nano'', ''vi'', ''vim'', ''gvim'', ''gedit'', ...). You can use them:
   * In basic **text terminals**
-    * useful if you are in a hurry, and/or working on a remote server with a bad network connection or have no local [[other:x_conf|X server]] running
+    * **If you only need to read a text file**, use a //pager// like [[http://www.greenwoodsoftware.com/less|less]] (or ''more''): ''less my_text_file.txt''
-    * you should know the basic commands and shortcuts! Some text editors (e.g ''nano'') fortunately display some help at the bottom of the screen
+      * ''SPACE'' goes down one page
+      * ''b'' (//back//) goes back one page
+      * ''/STRING'' looks for ''STRING'' in the text (then ''n''ext, ''p''revious, ''q''uit)
+      * ''q'' exits
+    * **[[#gnu_nano|nano]] is probably the easiest editor in text mode** to use!
+    * Useful if you are in a hurry, and/or working on a remote server with a bad network connection or have no local [[other:x_conf|X server]] running
+    * You should know the basic commands and shortcuts!
   * With a **full Graphical User Interface** (aka //GUI//) allowing you to use the mouse+menus/buttons/etc...
@@ Line 508: / Line 516: @@
 <note important>Read the **dedicated [[other:emacs_doc|Using emacs]] page**, and become a power user!</note>
+=== Gnu nano ===
+<note tip>Gnu [[https://www.nano-editor.org/|nano]] is probably the easiest text editor in text mode to use!</note>
+You can easily view/edit a file by just typing ''nano my_text_file.txt'' in a terminal, and looking at the instructions displayed at the bottom of the screen (e.g. ''^X Exit'' means that you can exit the editor by typing ''CTRL-X'')
 === vi (vim, gvim) ===