mkatari-bioinformatics-august-2013-introlinuxnotes
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mkatari-bioinformatics-august-2013-introlinuxnotes [2015/06/03 18:13] – mkatari | mkatari-bioinformatics-august-2013-introlinuxnotes [2015/06/03 18:16] – mkatari | ||
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- | ====== | + | ====== |
The standard user interface for personal computers is a GUI (Graphical User Interface). However for linux it is a command-line interpreter called shell. | The standard user interface for personal computers is a GUI (Graphical User Interface). However for linux it is a command-line interpreter called shell. | ||
It is simply a prompt the awaits your command. There are several different shells, but the one used often is called “bash”, which is a mixture of a bunch of other shells. | It is simply a prompt the awaits your command. There are several different shells, but the one used often is called “bash”, which is a mixture of a bunch of other shells. | ||
- | |||
- | ===== Command Line Editing ===== | ||
- | |||
- | 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| | ||
- | |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-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| | ||
- | |||
- | 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 the example below, '' | ||
- | |||
- | < | ||
- | [mkatari@hpc ~]$ date | ||
- | Wed Jun 3 21:10:57 EAT 2015 | ||
- | [mkatari@hpc ~]$ ls -l | ||
- | total 19443152 | ||
- | -rw-rw-r--. 1 mkatari mkatari | ||
- | -rw-rw-r--. 1 mkatari mkatari | ||
- | -rw-rw-r--. 1 mkatari mkatari | ||
- | </ | ||
- | |||
- | ====== Logging in with X Windows ====== | ||
In cases where a program requires a GUI, you should log in using the '' | In cases where a program requires a GUI, you should log in using the '' | ||
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</ | </ | ||
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: '' | 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: '' | ||
+ | |||
+ | |||
+ | ===== Command Line Editing ===== | ||
+ | |||
+ | 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| | ||
+ | |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-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| | ||
+ | |||
+ | 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 the example below, '' | ||
+ | |||
+ | < | ||
+ | [mkatari@hpc ~]$ date | ||
+ | Wed Jun 3 21:10:57 EAT 2015 | ||
+ | [mkatari@hpc ~]$ ls -l | ||
+ | total 19443152 | ||
+ | -rw-rw-r--. 1 mkatari mkatari | ||
+ | -rw-rw-r--. 1 mkatari mkatari | ||
+ | -rw-rw-r--. 1 mkatari mkatari | ||
+ | </ | ||
+ | |||
mkatari-bioinformatics-august-2013-introlinuxnotes.txt · Last modified: 2015/06/11 11:50 by mkatari