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Wiki source code of Linux User Consoles How-Tos

Last modified by loktevda on 2025/10/08 17:24
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1 {{toc/}}
2
3
4 **Current Operating System: Ubuntu 24.04 LTS **
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 == Application Access Changes ==
20
21 **Application access has changed:** Applications are no longer accessed via Desktop icons. Instead, applications are now accessed through **Dashboard pins**.
22 Look for the Dashboard left (Activities overview) to find and launch your applications.
23 [[image:Screenshot from 2025-05-06 13-10-38.png||height="368" width="600"]]
24
25 == Paths of the mounts ==
26
27 Since the path's are not in the fstab anymore, one have to know the paths which are:
28
29 FLASH Core-FS:
30
31 **/asap3/flash/gpfs**
32
33 FLASH-O Core-FS:
34
35 **/asap3/fs-flash-o/gpfs**
36
37 pnfs:
38
39 **/pnfs/desy.de/flash1**
40
41
42 == How to take screenshots ==
43
44 Ubuntu 24 provides several convenient keyboard shortcuts for capturing screenshots:
45
46 === Keyboard Shortcuts ===
47
48 {{{
49 }}}
50
51 |=Shortcut|=Action
52 |PrtScn|Capture entire desktop
53 |Alt + PrtScn|Capture active window only
54 |Shift + PrtScn|Capture selected area
55 |Ctrl + PrtScn|Copy screenshot to clipboard
56
57 === How to Use Area Selection ===
58
59 1. Press Shift + PrtScn
60 1. Your cursor changes to a crosshair
61 1. Click and drag to select the area you want to capture
62 1. Release to take the screenshot
63
64 [[image:attach:Screenshot from 2020-01-22 10-16-28.png||height="250"]]
65
66 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.
67
68 In the above picture i used alt+print, for the following i used shift+print, so you see its just an area:
69
70 [[image:attach:Screenshot from 2020-01-22 10-16-02.png||height="250"]]
71
72
73 == How to change colors in terminal ==
74
75 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:
76
77 [[image:attach:Screenshot from 2020-01-22 10-18-49.png||height="250"]]
78
79 In the tab "Colors" you can change the colors from system themed to your own favorite:
80
81 [[image:attach:Screenshot from 2020-01-22 10-19-13.png||height="250"]]
82
83 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"]]
84
85 [[image:attach:Screenshot from 2020-01-24 09-06-40.png||height="112"]]
86
87 (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"]])
88
89
90 == How to run the Shell as a login shell ==
91
92 In the editing Profile Windows (see picture above) click on the Tab "Command" and check the "Run command as a login shell":
93
94 [[image:attach:Screenshot from 2020-01-22 10-19-44.png||height="250"]]
95
96 To see if you are running with or without login you can use the command "echo $0":
97
98 [[image:attach:Screenshot from 2020-01-22 10-20-29.png]]
99
100 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.
101
102
103 == Additional Tips ==
104
105 ==== Terminal Best Practices ====
106
107 * Use Ctrl + C to cancel running commands
108 * Use Ctrl + Z to suspend processes (resume with fg)
109 * Use history to view command history
110 * Use Tab for auto-completion
111
112 ==== File System Navigation ====
113
114 * Use pwd to show current directory
115 * Use ls -la for detailed file listings
116 * Use cd - to return to previous directory
117
118 ==== Getting Help ====
119
120 * Use man <command> for manual pages
121 * Use <command> ~-~-help for quick help
122 * Use apropos <keyword> to find related commands
123
124