* Shell
:PROPERTIES:
:ANKI_DECK: soft-eng::shell
:END:

** How to send a file via =curl= up to =clip.abaj.ai=? What are the two Rest endpoints? :curl:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_NOTE_ID: 1764703875742
:ANKI_NOTE_HASH: f81ae3e1a38331d2b543f65c8f9e3b2f
:END:

=curl -F "file=@myfile.txt" https://clip.abaj.ai/=

=curl -F "file=@image1.jpg" -F "file=@image2.jpg" https://clip.abaj.ai/upload/mypage=

** alias {{c1::icat}}="kitty +kitten icat"                            :kitty:
:PROPERTIES:
:ANKI_NOTE_TYPE: Cloze
:ANKI_NOTE_ID: 1765541545560
:ANKI_NOTE_HASH: a08ca50b55798430b333116f05b74e09
:END:



** How to stow all the *directories* with GNU stow?                     :gnu:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_NOTE_ID: 1766880938132
:ANKI_NOTE_HASH: e171fb446710cc3b46b42d59d1d1b869
:END:

=stow */=

** How to do brace expansions for letters and numbers in bash?         :bash:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_NOTE_ID: 1766880829405
:ANKI_NOTE_HASH: c28294dd0c183a8d01832cb888e217b3
:END:

={A..E}=

={3..12}=

double-dots.


** What is the difference between a shell and a terminal?          :terminal:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_NOTE_ID: 1766880829409
:ANKI_NOTE_HASH: db54ef5b2058fb731d7be1c5f29f45ad
:END:

a *shell* is a command-line interface for launching linux commands by typing plain text.

it prints a prompt and waits for a command.

a *terminal* is a program that opens and window and /presents a (running) shell/


** What are the 4 major parts of Linux?                               :linux:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_NOTE_ID: 1766880829413
:ANKI_NOTE_HASH: 5087d955d95e1016ca30a43a49fba809
:END:

1. The Kernel
2. Supplied Programs;
3. The Shell;
4. Graphical Desktop Environment (optional)

** What are the 4 major parts of Linux?
:PROPERTIES:
:ANKI_NOTE_TYPE: Cloze
:ANKI_NOTE_ID: 1766880248933
:ANKI_NOTE_HASH: 2e7a2f677d504829270894495215f0af
:ANKI_PREPEND_HEADING: t
:END:

*** Text

What are the 4 major parts of Linux?

\[
\begin{tikzpicture}[
    font=\sffamily,
    every node/.style={align=center},
    >=Stealth
]

% Colors
\definecolor{outer}{RGB}{210,225,240}
\definecolor{shell}{RGB}{170,200,225}
\definecolor{programs}{RGB}{110,160,210}
\definecolor{kernel}{RGB}{50,110,180}

% Radii
\def\Rgui{5.0}
\def\Rshell{3.8}
\def\Rprog{2.6}
\def\Rkern{1.4}

% --- Rings ---
\fill[outer, even odd rule]
  (0,0) circle (\Rgui)
  (0,0) circle (\Rshell);
\draw (0,0) circle (\Rgui);
\draw (0,0) circle (\Rshell);

\fill[shell, even odd rule]
  (0,0) circle (\Rshell)
  (0,0) circle (\Rprog);
\draw (0,0) circle (\Rprog);

\fill[programs, even odd rule]
  (0,0) circle (\Rprog)
  (0,0) circle (\Rkern);
\draw (0,0) circle (\Rkern);

\fill[kernel] (0,0) circle (\Rkern);
\draw (0,0) circle (\Rkern);

% --- Labels ---
\node[text=white, font=\bfseries] at (0,0) {{{c1::Kernel}}};

\node[text=white] at (0,-2.0)
  {{{c2::Programs\\(commands)}}};

\node at (0,-3.3)
  {{{c3::Shell\\(command-line interface)}}};

\node at (0,-4.4)
  {{{c4::Graphical desktop environment}}};

% --- Arrows + verbs (boundary-local, white) ---

% Programs -> Kernel : Call
\draw[->, white, line width=1.2pt]
  (1.2,0.3) -- (0.8,0.3);
\node[white, right] at (1.3,0.3) {\itshape Call};

% Shell -> Programs : Invokes
\draw[->, white, line width=1.2pt]
  (1.9,-1.9) -- (1.4,-1.6);
\node[white, right] at (2.0,-1.9) {\itshape Invokes};

% GUI -> Shell : Launches
\draw[->, black, line width=1.2pt]
  (2.8,-3.4) -- (2.2,-3.1);
\node[right] at (2.9,-3.4) {\itshape Launches};

\end{tikzpicture}
\]

*** Back Extra

** In Emacs, what does the following binding/s do?                    :emacs:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_PREPEND_HEADING: t
:ANKI_NOTE_ID: 1766880829417
:ANKI_NOTE_HASH: 25b4486ac05e9dad8698bfbd8a5f3f62
:END:

=C-h b=

*** Back

lists bindings

** In Emacs, what does the following binding/s do?                    :emacs:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_PREPEND_HEADING: t
:ANKI_NOTE_ID: 1766880829420
:ANKI_NOTE_HASH: b6daa60a3c11d52cb6adff8d48ae8932
:END:

=M-{= and =M-}=

*** Back

forward / backard paragraph

** In Emacs, what does the following binding/s do?                    :emacs:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_PREPEND_HEADING: t
:ANKI_NOTE_ID: 1766880829422
:ANKI_NOTE_HASH: 1414779fc1505ff82bca2d973e14598f
:END:

=C-v= and =M-v=

*** Back

page up / down

** In Emacs, what does the following binding/s do?                    :emacs:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_PREPEND_HEADING: t
:ANKI_NOTE_ID: 1766880829425
:ANKI_NOTE_HASH: 9d320ebc5f04d484d68b230e5c459484
:END:

=C-M-f= and =C-M-b=

*** Back

forward / backward balanced expression

** In Emacs, what does the following binding/s do?                    :emacs:
:PROPERTIES:
:ANKI_NOTE_TYPE: Basic
:ANKI_PREPEND_HEADING: t
:ANKI_NOTE_ID: 1766880829427
:ANKI_NOTE_HASH: d2d775ed748f863baf0c0f247f94c0b3
:END:

=C-x 2= and =C-x 3=

*** Back

split horizontal / vertical