merged multiple files for one topic into one markdown file, did some refactoring in linux.md

linux.md

@@ -1,3 +1,100 @@
+# Linux
+
+This document collects knowledge, tips and tricks on all things Linux, that don't get their own document.
+
+<!--toc:start-->
+- [Linux](#linux)
+  - [Setup and Configuration](#setup-and-configuration)
+    - [Locales and Keyboard Layouts](#locales-and-keyboard-layouts)
+      - [configure layout 'US intl. with deadkeys'](#configure-layout-us-intl-with-deadkeys)
+  - [Linux commands](#linux-commands)
+    - [combine commands with *xargs*](#combine-commands-with-xargs)
+    - [pipe output into clipboard](#pipe-output-into-clipboard)
+  - [permissions](#permissions)
+    - [octal permissions](#octal-permissions)
+  - [Terminal](#terminal)
+    - [ANSI escape sequences](#ansi-escape-sequences)
+      - [Text Style](#text-style)
+      - [Color codes](#color-codes)
+        - [8-16 Colors](#8-16-colors)
+        - [256 Colors](#256-colors)
+        - [RGB Colors](#rgb-colors)
+<!--toc:end-->
+
+
+## Setup and Configuration
+
+
+### Locales and Keyboard Layouts
+
+Use `localectl` to display and configure locales and keyboard layout:
+
+```sh
+# show current locales
+localectl status
+```
+
+
+#### configure layout 'US intl. with deadkeys'
+
+To configure `US intl. with deadkeys`, set the following values:
+```sh
+ X11 Layout: us
+  X11 Model: default
+X11 Variant: intl
+```
+
+
+## Linux commands
+
+- [Linux commands](#linux-commands)
+  - [combine commands with *xargs*](#combine-commands-with-xargs)
+
+
+### combine commands with *xargs*
+
+Some commands (e.g. `chmod`) can't handle input via pipe and require the input as arguments.
+`xargs` takes the standard input as list of arguments seperated by spaces or newlines and executes the given command with the input parsed to a list of arguments.
+
+Usage:
+```bash
+find . -type f | xargs chmod 644
+```
+
+
+### pipe output into clipboard
+
+> requires `xclip`
+
+One can save command output to the clipboard by piping it to `xclip`:
+
+```sh
+# usage
+command | xclip -selection clipboard
+
+# working example with 'echo'
+echo "hello world" | xclip -selection clipboard
+```
+
+> NOTE: the argument `-selection clipboard` is required
+
+
+## permissions
+
+Linux permissions are ordered as follows:
+- owner
+- group
+- others
+
+
+### octal permissions
+
+In octal representation the actions (read, write, execute) have the values:
+- read = 4
+- write = 2
+- execute = 1
+
+
 ## Terminal
 
 - [ANSI escape sequences](#ansi-escape-sequences)
@@ -5,14 +102,17 @@
 
 ### ANSI escape sequences
 
-Ansi escape sequences are used to format output in a terminal. They **are prefixed with an escape character**, which can be written in a few ways:
+Ansi escape sequences are used to format output in a terminal.
+They **are prefixed with an escape character**, which can be written in a few ways:
 
 - Ctrl-Key `^[`
 - Octal `\033` (\0 for octal)
 - Hexadecimal `\x1B` (\\x for hexadecimal)
 - Unicode `\u001b`
 
-The sequences is started with a `[` followed by the command and arguments. Arguments are separated with `;`. **Sequences are terminated with `m`.** 
+The sequences is started with a `[` followed by the command and arguments.
+Arguments are separated with `;`.
+**Sequences are terminated with `m`.** 
 
 ``` bash
 # Example:
@@ -20,6 +120,8 @@ The sequences is started with a `[` followed by the command and arguments. Argum
 ```
 
 For the following tables we define `ESC = \x1B`
+
+
 #### Text Style
 
 | ESC Code Sequence | Reset Sequence | Description |
@@ -37,11 +139,14 @@ For the following tables we define `ESC = \x1B`
 
 > **Note:** Some terminals may not support some of the graphic mode sequences listed above.
 
-> **Note:** Both dim and bold modes are reset with the `ESC[22m` sequence. The `ESC[21m` sequence is a non-specified sequence for double underline mode and only works in some terminals and is reset with `ESC[24m`.
+> **Note:** Both dim and bold modes are reset with the `ESC[22m` sequence.
+> The `ESC[21m` sequence is a non-specified sequence for double underline mode and only works in some terminals and is reset with `ESC[24m`.
+
 
 #### Color codes
 
-Most terminals support 8 and 16 colors, as well as 256 (8-bit) colors. These colors are set by the user, but have commonly defined meanings.
+Most terminals support 8 and 16 colors, as well as 256 (8-bit) colors.
+These colors are set by the user, but have commonly defined meanings.
 
 
 ##### 8-16 Colors
@@ -61,7 +166,8 @@ Most terminals support 8 and 16 colors, as well as 256 (8-bit) colors. These col
 
 > **Note:** the _Reset_ color is the reset code that resets _all_ colors and text effects, Use _Default_ color to reset colors only.
 
-Most terminals, apart from the basic set of 8 colors, also support the "bright" or "bold" colors. These have their own set of codes, mirroring the normal colors, but with an additional `;1` in their codes:
+Most terminals, apart from the basic set of 8 colors, also support the "bright" or "bold" colors.
+These have their own set of codes, mirroring the normal colors, but with an additional `;1` in their codes:
 
 ```sh
 # Set style to bold, red foreground.
@@ -83,6 +189,7 @@ Terminals that support the [aixterm specification](https://sites.ualberta.ca/dep
 | Bright Cyan    | `96`                  | `106`                 |
 | Bright White   | `97`                  | `107`                 |
 
+
 ##### 256 Colors
 
 The following escape codes tells the terminal to use the given color ID:
@@ -97,17 +204,14 @@ Where `{ID}` should be replaced with the color index from 0 to 255 of the follow
 ![256 Color table](https://user-images.githubusercontent.com/995050/47952855-ecb12480-df75-11e8-89d4-ac26c50e80b9.png)
 
 The table starts with the original 16 colors (0-15).
-
 The proceeding 216 colors (16-231) or formed by a 3bpc RGB value offset by 16, packed into a single value.
-
 The final 24 colors (232-255) are grayscale starting from a shade slighly lighter than black, ranging up to shade slightly darker than white.
-
 Some emulators interpret these steps as linear increments (`256 / 24`) on all three channels, although some emulators may explicitly define these values.
 
+
 ##### RGB Colors
 
 More modern terminals supports [Truecolor](https://en.wikipedia.org/wiki/Color_depth#True_color_.2824-bit.29) (24-bit RGB), which allows you to set foreground and background colors using RGB.
-
 These escape sequences are usually not well documented.
 
 | ESC Code Sequence       | Description                  |
@@ -115,5 +219,6 @@ These escape sequences are usually not well documented.
 | `ESC[38;2;{r};{g};{b}m` | Set foreground color as RGB. |
 | `ESC[48;2;{r};{g};{b}m` | Set background color as RGB. |
 
-> Note that `38` and `48` corresponds to the 16 color sequence and is interpreted by the terminal to set the foreground and background color respectively. Where as `;2` and `;5` sets the color format.
+> Note that `38` and `48` corresponds to the 16 color sequence and is interpreted by the terminal to set the foreground and background color respectively.
+> Where as `;2` and `;5` sets the color format.
 

linux.txt

@@ -1,5 +0,0 @@
-./linux/linux.md
-./linux/setup.md
-./linux/commands.md
-./linux/permissions.md
-./linux/terminal.md

linux/commands.md

@@ -1,29 +0,0 @@
-## Linux commands
-
-- [Linux commands](#linux-commands)
-  - [combine commands with *xargs*](#combine-commands-with-xargs)
-
-### combine commands with *xargs*
-
-Some commands (e.g. `chmod`) can't handle input via pipe and require the input as arguments. `xargs` takes the standard input as list of arguments seperated by spaces or newlines and executes the given command with the input parsed to a list of arguments.
-
-Usage:
-```bash
-find . -type f | xargs chmod 644
-```
-
-### pipe output into clipboard
-
-> requires `xclip`
-
-One can save command output to the clipboard by piping it to `xclip`:
-
-```sh
-# usage
-command | xclip -selection clipboard
-
-# working example with 'echo'
-echo "hello world" | xclip -selection clipboard
-```
-
-> NOTE: the argument `-selection clipboard` is required

linux/linux.md

@@ -1,9 +0,0 @@
-# Linux
-
-This document collects knowledge, tips and tricks on all things Linux, that don't get their own document.
-
-- [Setup and Configuration](linux/setup.md)
-- [Linux commands](linux/commands.md)
-- [Permissions](linux/permissions.md)
-- [Terminal](linux/terminal.md)
-

linux/permissions.md

@@ -1,14 +0,0 @@
-## permissions
-
-Linux permissions are ordered as follows:
-- owner
-- group
-- others
-
-### octal permissions
-
-In octal representation the actions (read, write, execute) have the values:
-- read = 4
-- write = 2
-- execute = 1
-

linux/setup.md

@@ -1,21 +0,0 @@
-## Setup and Configuration
-
-
-### Locales and Keyboard Layouts
-
-Use `localectl` to display and configure locales and keyboard layout:
-
-```sh
-# show current locales
-localectl status
-```
-
-
-#### configure layout 'US intl. with deadkeys'
-
-To configure `US intl. with deadkeys`, set the following values:
-```sh
- X11 Layout: us
-  X11 Model: default
-X11 Variant: intl
-```

make.txt

@@ -1 +0,0 @@
-./make/make.md