other:newppl:starting
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other:newppl:starting [2024/03/20 10:27] jypeter [Determining the load of a Linux server] Added details about TIME and mem usage |
other:newppl:starting [2024/04/03 11:33] jypeter [Available servers] Added getlogin and getenv Python example |
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| $ hostname | $ hostname | ||
| obelix5</code> | 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 | * **[[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 | ||
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| There are **lots of text editors available** on Linux computers/servers (''emacs'', ''nano'', ''vi'', ''vim'', ''gvim'', ''gedit'', ...). You can use them: | 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** | * 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... | * With a **full Graphical User Interface** (aka //GUI//) allowing you to use the mouse+menus/buttons/etc... | ||
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| <note important>Read the **dedicated [[other:emacs_doc|Using emacs]] page**, and become a power user!</note> | <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) === | === vi (vim, gvim) === | ||
other/newppl/starting.txt · Last modified: 2024/04/24 12:37 by jypeter
