Top level headers

Author: cirosantilli

README.md

@@ -9,7 +9,7 @@ Includes Linux concepts and utilities that work on Linux, not necessarily in the
 Important files:
 
 - [ubuntu/install.sh](ubuntu/install.sh): Ubuntu install methods many programs.
-- [utils.sh](utils.sh):                   dump of many utils that fit in no other category or are not large enough to get their own file. Many POSIX utilities.
+- [utils.sh](utils.sh): dump of many utils that fit in no other category or are not large enough to get their own file. Many POSIX utilities.
 
 Documentation viewers:
 
@@ -30,27 +30,27 @@ Initialization:
 
 - [install-os.md](install-os.md): how to install a new OS.
 - [boot.md](boot.md)
-- [init.md](init.md):             System V, Upstart.
+- [init.md](init.md): System V, Upstart.
 
 Base topics:
 
-- [desktop/](desktop/):                       X, XDG, GNOME, KDE and related utilities.
-- [filesystem.md](filesystem.md):             POSIX file permissions.
+- [desktop/](desktop/): X, XDG, GNOME, KDE and related utilities.
+- [filesystem.md](filesystem.md): POSIX file permissions.
 - [file-permissions.md](file-permissions.md): filesystem, hard disks, mounting, partitions.
-- [special-files](special-files):             `proc`, `dev` and `sys` filesystems.
-- [terminal.md](terminal.md):                 terminal emulators, ANSI escapes, control characters.
+- [special-files](special-files): `proc`, `dev` and `sys` filesystems.
+- [terminal.md](terminal.md): terminal emulators, ANSI escapes, control characters.
 
 Media video, games, etc.) file types, viewers, editors, capture, synthesizers:
 
-- [audio/](audio/):                 audio, music, sound.
-- [book.md](book.md):               PDF, DJVU.
+- [audio/](audio/): audio, music, sound.
+- [book.md](book.md): PDF, DJVU.
 - [compression.md](compression.md): Zip, tar, gzip, 7z.
-- [dict.md](dict.md):               dictionary formats.
-- [game.md](game.md):               games, emulation.
+- [dict.md](dict.md): dictionary formats.
+- [game.md](game.md): games, emulation.
 - [file-share.md](files-share.md):  Soulseek, Dropbox.
-- [image/](image/):                 images, photos.
-- [markup](markup/):                Markdown, RST. Focus on command line interface and extensions.
-- [video.md](video.md):             videos, films, subtitles.
+- [image/](image/): images, photos.
+- [markup](markup/): Markdown, RST. Focus on command line interface and extensions.
+- [video.md](video.md): videos, films, subtitles.
 
 Generic data formats:
 
@@ -87,6 +87,7 @@ Process-related tools:
 - [pwd.sh](pwd.sh)
 - [sleep.sh](sleep.sh)
 - [top.md](top.md)
+- [ulimit.md](ulimit.md)
 - [wait.sh](wait.sh)
 
 Other tools:

atom.md

@@ -1,3 +1,5 @@
+# Atom
+
 Text editor.
 
 Open source.
@@ -16,22 +18,22 @@ Command cheatsheets:
 
 - <https://bugsnag.com/blog/atom-editor-cheat-sheet>
 
-# Commands
+## Commands
 
 `c-,`: configuration view
 
-# Configuration files
+## Configuration files
 
 All under `~/.atom/`
 
 - `config.cson`: main configuration file
 - `keybinding.cson`
 
-# Packages
+## Packages
 
 Disable packages: not possible through GUI. `config.cson` > `core` > `disabledPackages` array.
 
-## APM
+### APM
 
 Search for package:
 
@@ -41,6 +43,6 @@ Install package:
 
     apm install vim-mode
 
-## Packages I recommend:
+### Packages I recommend:
 
     apm install vim-mode

audio/README.md

@@ -1,4 +1,6 @@
-#Directories
+#Audio
+
+##Directories
 
 On most systems, sound will be kept under:
 
@@ -20,9 +22,9 @@ If you want to have some real good fun try:
 
     find /usr/share/sounds -type f -iname '*.ogg' | sort | xargs -I'{}' play '{}'
 
-#Players
+##Players
 
-##paplay
+###paplay
 
 Pulse Audio play.
 
@@ -37,27 +39,27 @@ Terminates when over. Good option to play an alarm signal after a very long comm
 
     sleep 5 && play ~/share/sounds/alert.*
 
-##aplay
+###aplay
 
 ALSA player.
 
 Comes with Ubuntu 12.04, but did not work very well.
 
-##play
+###play
 
 SoX package. Similar to `paplay`.
 
-##cplay
+###cplay
 
 ncurses CLI.
 
 Has a file browser.
 
     cplay
 
-#Manipulation
+##Manipulation
 
-##lame
+###lame
 
 Encode, decode and modify MP3.
 
@@ -69,7 +71,7 @@ WAV to MP3:
 
     lame a.wav a.mp3
 
-##id3tool
+###id3tool
 
 Get id3 tags info (for mp3 for example):
 
@@ -81,19 +83,19 @@ Get id3 tags info (for mp3 for example):
 
     install -D "$1" /music/mp3/"$ARTIST-$ALBUM-$YEAR"/"$TRACKNUM-$ARTIST-$TITLE".mp3
 
-##Cut up FLAC CUE into multiple files
+###Cut up FLAC CUE into multiple files
 
-###flacon
+####flacon
 
 GUI.
 
-###shntool
+####shntool
 
 Single APE and CUE in dir, FLAC output, formatted as number, author, track
 
     shntool split -f *.cue -o flac *.ape -t '%n - %p - %t'
 
-##SoX
+###SoX
 
 Set of utilities record, play and modify files via CLI.
 
@@ -107,7 +109,7 @@ Record from microphone into `a.wav` file:
 
 `ctrl+c` to stop recording.
 
-#ALSA
+##ALSA
 
 Advanced Linux Sound API.
 
@@ -117,7 +119,7 @@ The kernel sound subsystem is called ALSA.
 
 There are a few tools that interact with it.
 
-##alsamixer
+###alsamixer
 
 ncurses interface to view/control sound parameters
 
@@ -128,7 +130,7 @@ Commands:
 - left/right : change active parameter
 - up/down    : change active parameter value
 
-##amixer
+###amixer
 
 CLI for sound control.
 
@@ -144,21 +146,21 @@ Unmute sound:
 
     amixer -D pulse set Master 1+ unmute
 
-##aplay
+###aplay
 
 Command line tool that takes numeric input from stdin and generate sound.
 
-#pulseaudio
+##pulseaudio
 
-##pacmd
+###pacmd
 
 Command line control to PulseAudio.
 
-#rip
+##rip
 
-##abcde
+###abcde
 
-###CLI
+####CLI
 
 Rip from DVD:
 
@@ -168,9 +170,9 @@ Automatically finds right configurations on most systems.
 
 Creates dir in cur dir and saves rip out as `.ogg` in it.
 
-#Synthesis
+##Synthesis
 
-##pico2wave
+###pico2wave
 
 Text to speech.
 
@@ -182,6 +184,6 @@ Say "hello world":
 
 `"hello world"` is **not** a filename! It is the actual input! There seems to be no way to get input from files or stdin.
 
-##Virtual Midi Piano Keyboard
+###Virtual Midi Piano Keyboard
 
-##vmpk
+###vmpk

base64.md

@@ -28,6 +28,20 @@ Standards exist which drop the power of 2 requirement. Base85 encodes 4 bytes in
 
 Base85 implementations are slower than Base64 and less common. Data gets 25% bigger instead of 33% as for Base64.
 
+##Base58
+
+<http://en.wikipedia.org/wiki/Base58>
+
+Base 64 with a few characters removed to make it easier for humans to read:
+
+- `I` (capital `i`) and `l` (lower case `L`) because they look alike
+- `O` (capital `o`) and `0` (zero) because they look alike
+- non alpha characters: `+` and `/`
+
+The actual order is not well specified, and more specific standards must be considered.
+
+E.g., Bitcoin and Ripple use different orders.
+
 ##Why not use hexadecimal?
 
 Even simpler for humans, but data gets much larger Ks the base is smaller.

bc.md

@@ -1,3 +1,5 @@
+# bc
+
 POSIX
 
 Simple interpreted language, calculator focus.