mkatari-bioinformatics-august-2013-introlinuxnotes
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mkatari-bioinformatics-august-2013-introlinuxnotes [2015/06/03 17:49] – [Command Line Editing] mkatari | mkatari-bioinformatics-august-2013-introlinuxnotes [2015/06/03 18:15] – mkatari | ||
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+ | ====== Logging in with X Windows ====== | ||
+ | |||
+ | In cases where a program requires a GUI, you should log in using the '' | ||
+ | This opens a tunnel to your computer allowing all windows to open in your computer. | ||
+ | For this to work you need X11 installed on your computer (MobaXterm already has one) | ||
+ | MAC – Xquartz (http:// | ||
+ | Windows – Xming (http:// | ||
+ | |||
+ | < | ||
+ | Last login: Wed Jun 3 15:49:01 on ttys000 | ||
+ | Manpreets-MacBook-Pro: | ||
+ | Unauthorized access is prohibited. | ||
+ | mkatari@hpc.ilri.cgiar.org' | ||
+ | Last login: Wed Jun 3 16:33:26 2015 from 197.136.62.11 | ||
+ | [mkatari@hpc ~]$ emacs | ||
+ | |||
+ | </ | ||
+ | |||
+ | You should have a window popup on your computer that looks something like this. | ||
+ | |||
+ | {{: | ||
+ | |||
+ | Simply close the window to exit. | ||
+ | |||
+ | ====== Home Sweet Home ====== | ||
+ | |||
+ | When you first log in, you will be in a directory called “'' | ||
+ | < | ||
+ | / | ||
+ | </ | ||
+ | Generally in this directory you have complete control over creating, modifying, and executing files in this or any sub directory you create. In order to return to your home directory simply type the command: '' | ||
====== The Linux Shell ====== | ====== The Linux Shell ====== | ||
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The command is only executed once you press enter. Till then you can edit the line by using the following key strokes: | The command is only executed once you press enter. Till then you can edit the line by using the following key strokes: | ||
+ | ^Action ^Result ^ | ||
|Backspace (delete on MACs) |delete previous character| | |Backspace (delete on MACs) |delete previous character| | ||
|Left Arrow, Right Arrow| move left and right on lines | | |Left Arrow, Right Arrow| move left and right on lines | | ||
+ | |Up Arrow, down Arrow| previous and following command| | ||
|Ctrl-A| go to front of line| | |Ctrl-A| go to front of line| | ||
+ | |Ctrl-E| go to end of line| | ||
+ | |Ctrl-D| delete next character| | ||
+ | |Ctrl-K| delete everything to the right of the character| | ||
+ | |Ctrl-Y| paste| | ||
+ | |Ctrl-C| stop a running job| | ||
- | ====== Logging in with X Windows ====== | + | Once you press enter the program will be executed. When your prompt returns, you know that the program has finished. If there is an output to the program it usually prints it on the screen (often referred to as the standard output) |
- | In cases where a program requires a GUI, you should log in using the –X option. | + | In the example below, '' |
- | This opens a tunnel to your computer allowing all windows to open in your computer. | + | |
- | For this to work you need X11 installed on your computer (MobaXterm already has one) | + | |
- | MAC – Xquartz (http://xquartz.macosforge.org/ | + | |
- | Windows – Xming (http:// | + | |
< | < | ||
- | Last login: | + | [mkatari@hpc ~]$ date |
- | Manpreets-MacBook-Pro: | + | Wed Jun 3 21:10:57 EAT 2015 |
- | Unauthorized access is prohibited. | + | [mkatari@hpc |
- | mkatari@hpc.ilri.cgiar.org' | + | total 19443152 |
- | Last login: Wed Jun 3 16:33:26 2015 from 197.136.62.11 | + | -rw-rw-r--. 1 mkatari mkatari |
- | [mkatari@hpc ~]$ | + | -rw-rw-r--. 1 mkatari mkatari |
+ | -rw-rw-r--. 1 mkatari | ||
</ | </ | ||
- | You should have a window popup on your computer that looks something like this. | ||
- | {{: | ||
mkatari-bioinformatics-august-2013-introlinuxnotes.txt · Last modified: 2015/06/11 11:50 by mkatari