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Last modified by loktevda on 2026-01-19 10:02
From version 22.4
edited by loktevda
on 2025-12-05 15:14
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To version 6.1
edited by sendels
on 2020-01-24 09:09
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1 -FLASHUSER.Misc.jddd-linked help pages.WebHome
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1 -XWiki.loktevda
1 +XWiki.sendels
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1 -how-to
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1 -{{toc/}}
2 2  
3 3  
4 -**Current Operating System: Ubuntu 24.04 LTS **
3 +{{toc/}}
5 5  
6 -This guide provides essential how-to instructions for Ubuntu 24.04 LTS users working with the Linux console FSFL.
7 -
8 -== Access Information ==
9 -
10 -**Need login credentials functional accounts or support?**
11 -
12 -* **Email:** [[darya.loktev@desy.de>>mailto:darya.loktev@desy.de]]
13 -* **In-person support:** Come to room 02.015
14 -
15 -== Shared Desktop Environment ==
16 -
17 -**The Desktop will be shared** - please use Desktop shared folders for file storage and collaboration.
18 -
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
21 -
22 -
23 -
24 -== Application Access Changes ==
25 -
26 -**Application access has changed:** Applications are no longer accessed via Desktop icons. Instead, applications are now accessed through **Dashboard pins**.
27 -Look for the Dashboard left (Activities overview) to find and launch your applications.
28 -[[image:Screenshot from 2025-05-06 13-10-38.png||height="368" width="600"]]
29 -
30 30  == Paths of the mounts ==
31 31  
32 32  Since the path's are not in the fstab anymore, one have to know the paths which are:
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41 41  
42 42  pnfs:
43 43  
44 -**/pnfs/desy.de/flash1**
19 +**/pnfs/desy.de/flash1
20 +**
45 45  
22 +\\
46 46  
47 47  == How to take screenshots ==
48 48  
49 -Ubuntu 24 provides several convenient keyboard shortcuts for capturing screenshots:
26 +Shortcuts of the Screenshots:
50 50  
51 -=== Keyboard Shortcuts ===
52 -
53 -{{{
54 - }}}
55 -
56 -|=Shortcut|=Action
57 -|FN +PrtScn|Capture entire desktop
58 -|Alt + PrtScn|Capture active window only
59 -|Shift + PrtScn|Capture selected area
60 -|Ctrl + PrtScn|Copy screenshot to clipboard
61 -
62 -=== How to Use Area Selection ===
63 -
64 -1. Press Shift + PrtScn
65 -1. Your cursor changes to a crosshair
66 -1. Click and drag to select the area you want to capture
67 -1. Release to take the screenshot
68 -
69 69  [[image:attach:Screenshot from 2020-01-22 10-16-28.png||height="250"]]
70 70  
71 -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.
30 +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 ant u have to mark the area you want to take a acreen of.
72 72  
73 -In the above picture i used alt+print, for the following i used shift+print, so you see its just an area:
32 +Above picture i used alt+print, for the following i used shift+print, so you see its just an area:
74 74  
75 75  [[image:attach:Screenshot from 2020-01-22 10-16-02.png||height="250"]]
76 76  
36 +\\
77 77  
78 78  == How to change colors in terminal ==
79 79  
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85 85  
86 86  [[image:attach:Screenshot from 2020-01-22 10-19-13.png||height="250"]]
87 87  
88 -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"]]
48 +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||title="(smile)" border="0" class="emoticon emoticon-smile"]]
89 89  
90 90  [[image:attach:Screenshot from 2020-01-24 09-06-40.png||height="112"]]
91 91  
92 -(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"]])
52 +(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||title="(smile)" border="0" class="emoticon emoticon-smile"]])
93 93  
54 +\\
94 94  
95 95  == How to run the Shell as a login shell ==
96 96  
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100 100  
101 101  To see if you are running with or without login you can use the command "echo $0":
102 102  
103 -[[image:attach:Screenshot from 2020-01-22 10-20-29.png]]
64 +[[image:attach:Screenshot from 2020-01-22 10-20-29.png||height="138"]]
104 104  
105 105  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.
106 -
107 -
108 -== Additional Tips ==
109 -
110 -==== Terminal Best Practices ====
111 -
112 -* Use Ctrl + C to cancel running commands
113 -* Use Ctrl + Z to suspend processes (resume with fg)
114 -* Use history to view command history
115 -* Use Tab for auto-completion
116 -
117 -==== File System Navigation ====
118 -
119 -* Use pwd to show current directory
120 -* Use ls -la for detailed file listings
121 -* Use cd - to return to previous directory
122 -
123 -==== Getting Help ====
124 -
125 -* Use man <command> for manual pages
126 -* Use <command> ~-~-help for quick help
127 -* Use apropos <keyword> to find related commands
128 -
129 -==== JDDD Issues ====
130 -
131 -* (((
132 - When starting the application, please check whether another instance is already running so that it does not open multiple windows or panels at the same time, which could cause an Out-Of-Memory error.
133 -If another instance is running, the new one should either close the existing instance safely or terminate the Java process (e.g., using killall java or via Task Manager).
134 -To open the Task Manager, press **Ctrl + Shift + Esc**.
135 -Alternatively, you can press **Ctrl + Alt + Delete** and select **Task Manager** from the menu or s
136 -From there, you can find the running Java process and end it if necessary.
137 -)))
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