Tips And Tricks - Revision history

Blu256: /* Application tricks */ Make Kate commands table collapsed by default

2024-08-15T20:30:06Z

Application tricks: Make Kate commands table collapsed by default

Blu256: /* Method 2: autostart TDE components from WM */ Added class="wikitable" to table

2024-08-15T20:28:59Z

Method 2: autostart TDE components from WM: Added class="wikitable" to table

Blu256: /* Using a custom side image for classic K-Menu */ added explanation of image files

2024-08-15T20:26:51Z

Using a custom side image for classic K-Menu: added explanation of image files

Blu256: /* Kate: Quickly apply settings to a document */ Some improvements

2024-06-10T14:40:24Z

Kate: Quickly apply settings to a document: Some improvements

Blu256: Add documentation about kate commands

2024-06-10T14:31:03Z

Add documentation about kate commands

Blu256: Add tip for overcoming the application/octet-stream error

2024-06-09T16:08:38Z

Add tip for overcoming the application/octet-stream error

Michele Calgaro: Add section 'Hide suspension related buttons from the shutdown dialog'

2024-03-12T02:11:22Z

Add section 'Hide suspension related buttons from the shutdown dialog'

Blu256: /* Unable to change display brightness with NVidia cards */ Improved formatting

2023-05-25T15:41:00Z

Unable to change display brightness with NVidia cards: Improved formatting

Michele Calgaro: Added tip on display brightness and nvidia driver.

2023-05-18T03:51:37Z

Added tip on display brightness and nvidia driver.

Blu256: /* Error: TDE mediamanager is not running */ Changed syntax highlighter

2023-02-02T14:16:06Z

Error: TDE mediamanager is not running: Changed syntax highlighter

@@ Line 342: / Line 342: @@
 See the table below for some useful commands:
-{|class="wikitable mw-collapsible"
+{|class="wikitable mw-collapsible mw-collapsed" style="width: 100%"
 !Command
 !Arguments

@@ Line 250: / Line 250: @@
 Make sure your window manager executes the first command (and any of the other ones for other desktop components you might want to use). For a more-or-less complete TDE session use all of them:
+{| class="wikitable"
-{|
 !Command
 !Description

@@ Line 223: / Line 223: @@
 # Place custom <code>kside.png</code> and <code>kside_tile.png</code> files into <code>$TDEHOME/share/apps/kicker/pics/</code>.
 # In <code>Trinity Control Center >> Desktop >> Panels</code> under "Menus" enable "Show side image".
+<code>kside.png</code> is the side image itself, while <code>kside_tile.png</code> is the image that fills the space above the side image if the latter does not fully fit the menu.
 Hint: you may find the default <tt>kside.png</tt> and <tt>kside_tile.png</tt> files within <tt>$TDEDIR/share/apps/kicker/pics/</tt>.

@@ Line 328: / Line 328: @@
 [[Kmail_Sanitize_and_Decrypt_Mails|Kmail Sanitize and Decrypt Mails]] shows an example on how to create a filter in kmail that removes unwanted headers and automaticly decrypts incomming mails.
-=== Kate: Quickly apply settings to a document ===
+=== Kate: Using the built-in command line ===
-You can quickly apply some special settings to an open file without leaving your keyboard, by using the built-in command line. Press F7 to open it. It will show as a single text field below the document. When you enter a command, it will automatically offer completions, so no need to worry if you are not sure about a command's name (or sometimes even arguments!). Also, the prompt preserves the history of previous successful command runs, which can be navigated using Up/Down movement keys.
+You can quickly apply some special settings to an open file without leaving your keyboard, by using the built-in command line in any application that uses the Kate editing part (e.g. Kate itself, KWrite, TDevelop). Press F7 to open it. It will show as a single text field below the document. When you enter a command, it will automatically offer completions, so no need to worry if you are not sure about a command's name (or sometimes even arguments!). Also, the prompt preserves the history of previous successful command runs, which can be navigated using Up/Down movement keys.
 You can apply one command per time, the syntax is <code>COMMAND [ARGUMENTS...]</code>. You can set the values for all the variables that you can set through the modeline comment prefixed with "set-" (see the relevant section in the Kate documentation if unsure).
@@ Line 337: / Line 337: @@
 To change the highlighting to Python: <code>set-highlighting Python</code>.
-Of course, the built-in command line also comes with some more advanced commands, see the table below for a full list:
+Of course, the built-in command line also comes with some more advanced commands. External tools and plugins can also add their own commands! You can get a full list of available commands by running <code>help list</code> and get help related to a command by running <code>help <command></code>.
+See the table below for some useful commands:
 {|class="wikitable mw-collapsible"
 !Command
 !Arguments
 !Description
+|-
+|help
+|[command]
+|Show a help message in a tooltip. If no argument is provided, shows a generic help message on using the command line. If the special argument <code>list</code> is specified, lists all available commands. If a command name is provided, tries to find help information related to that command.
 |-
 |char
@@ Line 466: / Line 472: @@
 Sed-like expressions are also accepted, e.g.:
 <code>s/afternoon/abend/g</code>
 == Useful scripts ==
 A collection of snippets and useful scripts which can help in automating some tasks in TDE.

@@ Line 328: / Line 328: @@
 [[Kmail_Sanitize_and_Decrypt_Mails|Kmail Sanitize and Decrypt Mails]] shows an example on how to create a filter in kmail that removes unwanted headers and automaticly decrypts incomming mails.
+=== Kate: Quickly apply settings to a document ===
+You can quickly apply some special settings to an open file without leaving your keyboard, by using the built-in command line. Press F7 to open it. It will show as a single text field below the document. When you enter a command, it will automatically offer completions, so no need to worry if you are not sure about a command's name (or sometimes even arguments!). Also, the prompt preserves the history of previous successful command runs, which can be navigated using Up/Down movement keys.
+You can apply one command per time, the syntax is <code>COMMAND [ARGUMENTS...]</code>. You can set the values for all the variables that you can set through the modeline comment prefixed with "set-" (see the relevant section in the Kate documentation if unsure).
+For example, to automatically replace tabs with spaces you can enter: <code>set-replace-tabs true</code>.
+To set tab width to 4 spaces: <code>set-tab-width 4</code>.
+To change the highlighting to Python: <code>set-highlighting Python</code>.
+Of course, the built-in command line also comes with some more advanced commands, see the table below for a full list:
+{|class="wikitable mw-collapsible"
+!Command
+!Arguments
+!Description
+|-
+|char
+|hex, octal or base 9+1
+|Inserts a Unicode or ASCII character based on its numeric value (e.g. 0x1234, x1234, 01231, 1234).
+|-
+|date
+|[format string]
+|Inserts current date according to the specified format string. If invalid, the default (<code>yyyy-MM-dd hh:mm:ss</code>) is used instead.
+|-
+|find
+|[:[bcerpsw]] string
+|Finds the first occurrence of <code>string</code> in the document. Modifiers can be specified after the command by appending a ":", e.g. <code>find:se hello</code>. The meaning of the modifiers is: '''b''' for searching backwards, '''c''' for searching from the current cursor position, '''e''' for searching only inside the selection, '''r''' for evaluating <code>string</code> as a regular expression, '''p''' for showing a prompt each time an occurrence of <code>string</code> is about to be replaced (<code>replace</code> command only), '''s''' makes search case-sensitive and '''w''' makes search look for whole words only, not substrings.
+|-
+|ifind
+|[:[bcrs]] string
+|Finds the first occurrence of <code>string</code> interactively. It performs the search again each time a key is pressed.
+|-
+|replace
+|[:[bcerpsw]] string [replacement]
+|Replaces all occurrences of <code>string</code> with <code>replacement</code>. If <code>replacement</code> is omitted, it is assumed to be an empty string. For explanation of the modifiers see the description of <code>find</code>.
+|-
+|indent
+|NONE
+|Indent current line or selection by one tab stop
+|-
+|unindent
+|NONE
+|Unindent current line or selection by one tab stop
+|-
+|cleanindent
+|NONE
+|Reset identation of current line or selection
+|-
+|comment
+|NONE
+|Comment current line or selection
+|-
+|uncomment
+|NONE
+|Uncomment current line or selection
+|-
+|kill-line
+|NONE
+|Kills current line, regardless of selection.
+|-
+|set-indent-mode
+|number > 0
+|Sets the current indentation mode
+|-
+|set-highlight
+|string
+|Set highlighting mode for the current document
+|-
+|set-tab-width
+|number > 0
+|Set tab width to <code>number</code> spaces.
+|-
+|set-indent-width
+|number > 0
+|Set indentation width to <code>number</code>.
+|-
+|set-word-wrap-column
+|number > 0
+|Set column on which word wrapping should occur.
+|-
+|goto
+|number > 0
+|Go to line <code>number</code>.
+|-
+|set-icon-border
+|boolean
+|Whether to show icon border
+|-
+|set-folding-markers
+|boolean
+|Whether to show folding markers
+|-
+|set-line-numbers
+|boolean
+|Whether to show line numbers
+|-
+|set-show-indent
+|boolean
+|Whether to show indent lines
+|-
+|set-replace-tabs
+|boolean
+|Whether to replace tabs with spaces
+|-
+|set-remove-trailing-space
+|boolean
+|Whether to automatically remove trailing whitespaces.
+|-
+|set-remove-trailing-space-save
+|boolean
+|Whether to remove trailing whitespaces on saving.
+|-
+|set-show-tabs
+|boolean
+|Whether to show tab characters. Has no effect on space characters.
+|-
+|set-indent-spaces
+|boolean
+|Whether to use spaces instead of tabs for indentation.
+|-
+|set-mixed-indent
+|boolean
+|If enabled, enables <code>space-indent</code> and, if <code>indent-width</code> is zero, sets it to <code>tab-width / 2</code>.
+|-
+|set-word-wrap
+|boolean
+|Whether to enable word wrapping.
+|-
+|set-wrap-cursor
+|boolean
+|Whether the cursor wraps with the text or can assume arbitrary positions in the document. Lines are automatically compensated with the needed spaces.
+|-
+|run-myself
+|NONE
+|Execute the current document's text in the built-in Javascript interpreter
+|}
+Sed-like expressions are also accepted, e.g.:
+<code>s/afternoon/abend/g</code>
 == Useful scripts ==
 A collection of snippets and useful scripts which can help in automating some tasks in TDE.

@@ Line 459: / Line 459: @@
 <syntaxhighlight lang="shell">
 GRUB_CMDLINE_LINUX_DEFAULT="quiet nvidia.NVreg_EnableBacklightHandler=1 acpi_backlight=vendor"
+</syntaxhighlight>
+=== Unable to find mime type application/octet-stream ===
+This error can occur due to a known bug with the TDE MIME system.
+There are two known methods to fix this:
+==== Method 1: Graphical ====
+# Go to <code>TDE Control Centre > TDE Components > File Associations</code>
+# Click on the <code>Add...</code> button at the bottom
+# Select the <code>application</code> group from the drop-down menu
+# In the name field type: <tt>octet-stream</tt>
+# Click OK to close the dialog
+# Apply the settings
+==== Method 2: Via CLI ====
+<syntaxhighlight lang="shell-session">
+$ cat > ~/.trinity/share/mimelnk/application/octet-stream.desktop << EOF
+[Desktop Entry]
+Comment=octet-stream
+Hidden=false
+Icon=
+MimeType=application/octet-stream
+Patterns=
+Type=MimeType
+EOF
 </syntaxhighlight>

@@ Line 422: / Line 422: @@
 $ dcop ksmserver default logout 0 2 2
 </syntaxhighlight>
+=== Hide suspension related buttons from the shutdown dialog ===
+There is currently no GUI option for this, but it can be achieved by a simple configuration script.<br/>
+Create the file '~/.trinity/share/config/power-managerrc' and put the
+following two lines inside:
+<syntaxhighlight lang="bash">
+disableSuspend=true
+disableHibernate=true
+</syntaxhighlight>
+The next time the shutdown dialog is displayed, only the Logout, Shutdown and Restart buttons will be shown.<br/>
+Freeze, Suspend, Hybrid suspend, Hibernate buttons will not be displayed.
 == Troubleshooting ==

@@ Line 438: / Line 438: @@
 The following tip works for some users and it is worth a try.
-In "/etc/default/grub" add "acpi_backlight=vendor" and/or "nvidia.NVreg_EnableBacklightHandler=1" to
+In <tt>/etc/default/grub</tt> add <code>acpi_backlight=vendor</code> and/or <code>nvidia.NVreg_EnableBacklightHandler=1</code> to
-the variable GRUB_CMDLINE_LINUX_DEFAULT and reboot. Then controlling the display brightness using TDE
+the variable <tt>GRUB_CMDLINE_LINUX_DEFAULT</tt> and reboot. Then controlling the display brightness using TDE
 and multimedia (or Fn combination) keys should/may work.
+Example:
+<syntaxhighlight lang="shell">
 GRUB_CMDLINE_LINUX_DEFAULT="quiet nvidia.NVreg_EnableBacklightHandler=1 acpi_backlight=vendor"
+</syntaxhighlight>
 = See also =

@@ Line 429: / Line 429: @@
 To solve this, add the following lines to your window manager's autostart script:
-<syntaxhighlight lang="shell-session">
+<syntaxhighlight lang="shell">
 tdeinit
 dcop kded kded loadModule mediamanager