Wiki source code of Linux User Consoles How-Tos

Version 20.1 by loktevda on 2025-10-30 10:36

version	line-number	content
16.1	1	{{toc/}}
1.1	2
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11.2	4	Current Operating System: Ubuntu 24.04 LTS
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	6	This guide provides essential how-to instructions for Ubuntu 24.04 LTS users working with the Linux console FSFL.
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11.3	8	== Access Information ==
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	10	Need login credentials functional accounts or support?
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	12	* Email: [[darya.loktev@desy.de>>mailto:darya.loktev@desy.de]]
11.4	13	* In-person support: Come to room 02.015
11.3	14
14.2	15	== Shared Desktop Environment ==
11.2	16
20.1	17	The Desktop will be shared - please use Desktop shared folders for file storage and collaboration.
13.2	18
20.1	19
	20	In case the Gnome graphic user interface is frozen, restart the X server by pressing the following 4 keys simultaneously: Ctr, Alt, SysReq, K. or Wndows taskbar
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	22
	23	\\
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14.2	25	== Application Access Changes ==
13.2	26
14.2	27	Application access has changed: Applications are no longer accessed via Desktop icons. Instead, applications are now accessed through Dashboard pins.
14.3	28	Look for the Dashboard left (Activities overview) to find and launch your applications.
	29	[[image:Screenshot from 2025-05-06 13-10-38.png\|\|height="368" width="600"]]
13.2	30
16.1	31	== Paths of the mounts ==
13.2	32
1.1	33	Since the path's are not in the fstab anymore, one have to know the paths which are:
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	35	FLASH Core-FS:
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2.1	37	/asap3/flash/gpfs
1.1	38
	39	FLASH-O Core-FS:
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	41	/asap3/fs-flash-o/gpfs
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	43	pnfs:
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11.1	45	/pnfs/desy.de/flash1
1.1	46
3.1	47
	48	== How to take screenshots ==
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11.6	50	Ubuntu 24 provides several convenient keyboard shortcuts for capturing screenshots:
3.1	51
11.6	52	=== Keyboard Shortcuts ===
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	54	{{{
	55	}}}
	56
	57	\|=Shortcut\|=Action
18.1	58	\|PrtScn or FN +PrtScn\|Capture entire desktop
11.6	59	\|Alt + PrtScn\|Capture active window only
	60	\|Shift + PrtScn\|Capture selected area
	61	\|Ctrl + PrtScn\|Copy screenshot to clipboard
	62
	63	=== How to Use Area Selection ===
	64
	65	1. Press Shift + PrtScn
	66	1. Your cursor changes to a crosshair
	67	1. Click and drag to select the area you want to capture
	68	1. Release to take the screenshot
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3.1	70	[[image:attach:Screenshot from 2020-01-22 10-16-28.png\|\|height="250"]]
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9.1	72	Easy to take screenshots of the full Desktop, only the active window or just an area. In area mode your cursor turns into a crosshair and you have to mark the area you want to take a screen of.
3.1	73
9.1	74	In the above picture i used alt+print, for the following i used shift+print, so you see its just an area:
3.1	75
	76	[[image:attach:Screenshot from 2020-01-22 10-16-02.png\|\|height="250"]]
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	78
	79	== How to change colors in terminal ==
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	81	In the Terminal click on "Edit" → "Preferences". A new window opens and there you click on the tab "Profiles". After this click on "Edit" to change the used profile:
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	83	[[image:attach:Screenshot from 2020-01-22 10-18-49.png\|\|height="250"]]
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	85	In the tab "Colors" you can change the colors from system themed to your own favorite:
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	87	[[image:attach:Screenshot from 2020-01-22 10-19-13.png\|\|height="250"]]
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11.1	89	In my case on my computer i use green text and black background with a much more colored stuff [[image:http://confluence.desy.de/s/en_US/7901/4635873c8e185dc5df37b4e2487dfbef570b5e2c/_/images/icons/emoticons/smile.svg\|\|border="0" title="(smile)" class="emoticon emoticon-smile"]]
3.1	90
5.1	91	[[image:attach:Screenshot from 2020-01-24 09-06-40.png\|\|height="112"]]
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11.1	93	(One can edit some coloring-the-terminal stuff in the .bashrc, too! But this isn't the topic in here [[image:http://confluence.desy.de/s/en_US/7901/4635873c8e185dc5df37b4e2487dfbef570b5e2c/_/images/icons/emoticons/smile.svg\|\|border="0" title="(smile)" class="emoticon emoticon-smile"]])
5.1	94
3.1	95
	96	== How to run the Shell as a login shell ==
	97
	98	In the editing Profile Windows (see picture above) click on the Tab "Command" and check the "Run command as a login shell":
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	100	[[image:attach:Screenshot from 2020-01-22 10-19-44.png\|\|height="250"]]
	101
	102	To see if you are running with or without login you can use the command "echo $0":
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8.1	104	[[image:attach:Screenshot from 2020-01-22 10-20-29.png]]
3.1	105
	106	The "-" implicates that it is a login shell. At example you need the login shell to use all your own variables. If you just change user etc. without it, it may happen that - at example - you don't have permissions to geht dconf work because of some variables still got owned by the previous user.
7.1	107
	108
12.4	109	== Additional Tips ==
8.1	110
15.1	111	==== Terminal Best Practices ====
12.4	112
	113	* Use Ctrl + C to cancel running commands
	114	* Use Ctrl + Z to suspend processes (resume with fg)
	115	* Use history to view command history
	116	* Use Tab for auto-completion
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15.1	118	==== File System Navigation ====
12.4	119
	120	* Use pwd to show current directory
	121	* Use ls -la for detailed file listings
	122	* Use cd - to return to previous directory
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15.1	124	==== Getting Help ====
12.4	125
	126	* Use man <command> for manual pages
	127	* Use <command> ~-~-help for quick help
	128	* Use apropos <keyword> to find related commands
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13.1	130

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