sync with cheat

bash/complete.yml

@@ -1,22 +1,19 @@
 --- 
-bash::complete: |+
-  # mategem. complete with installed gem directories
-  _mategem()
-  {
-      local curw
-      COMPREPLY=()
-      curw=${COMP_WORDS[COMP_CWORD]}
-      local gems="$(gem environment gemdir)/gems"
-      COMPREPLY=($(compgen -W '$(ls $gems)' -- $curw));
-      return 0
-  }
-  complete -F _mategem -o dirnames mategem
+bash_complete: |-
+  A bash snippet to have auto-complete for
+  the 'cheat' gem.
   
-  # chit
-  _chit()
-  {
-      COMPREPLY=($(compgen -W '$(chit all)' -- ${COMP_WORDS[COMP_CWORD]}));
-      return 0
-  }  
-  complete -F _chit chit
+  Use by typing :
+    $ cheat str<tab>
+  and get:
+    strftime       string         string_unpack
   
+  -------- bash script --------
+  function complete_cheat {
+    COMPREPLY=()
+    if [ $COMP_CWORD = 1 ]; then
+      sheets=`cheat sheets | grep '^  '`
+      COMPREPLY=(`compgen -W "$sheets" -- $2`)
+    fi
+  }
+  complete -F complete_cheat cheat

bash/emacskeys.yml

@@ -0,0 +1,78 @@
+--- 
+bash_emacskeys: |
+  Emacs keyboard bindings
+  
+  For OS X, open Terminal Preferences > keyboard, and check:
+  "Use option key as meta key"
+  
+  ---
+  In Terminal
+  
+  * and ** = variable user input
+  
+  opt-b       : back one word
+  opt-f       : forward one word
+  ctrl-a      : beginning of line
+  ctrl-e      : end of line
+  ctrl-]*     : jump forward to character *
+  ctrl-opt-]* : jump backward to character * (not OS X 10.4?)
+  opt-*       : repeat the next command * times where * is an integer
+  
+  ctrl-r *    : reverse history search for *
+  ctrl-j      : edit found command
+  !*          : run last command matching *
+  * opt-.     : find last command matching * (repeat to cycle)
+  *!$         : grab last command argument and execute
+  !#:*        : grab *th argument of current line (to repeat it)
+  :s/*/**     : search and replace * with **
+  
+  ^*^**       : search and replace in previous command
+    e.g.
+    ls al
+    ls: al: No such file or directory
+    ^al^-al
+    gives
+    ls -al
+  
+  ^*          : delete first instance of * in previous command
+    e.g.
+    lss -al
+    -bash: lss: command not found
+    ^s
+    gives
+    ls -al
+  
+  Cut and paste (Kill and Yank)
+  
+  ctrl -w     : delete argument back to previous space
+              : press immediately more than once to save multiple in one go
+  opt-del     : delete word back to previous word boundary
+  opt-d       : delete forward one word
+  ctrl-k      : kill to end of line
+  ctrl-u      : kill to start of line
+  
+  ctrl-y      : paste
+  opt-y       : (after ctrl-y) cycle through 'kill ring'
+  
+  grab numbered argument e.g.
+  echo a b c d > file.txt
+  echo !echo:3
+  gives echo c
+  
+  transform: grab tail end :t of last argument e.g.
+  wget ftp://somedomain.com/somefile.tar.gz
+  tar xzf !$:t
+  gives:
+  tar xzf ftp://somedomain.com/somefile.tar.gz
+  
+  remove two extensions with :r
+  cd !$:r:r
+  gives
+  cd somefile
+  
+  
+  see:
+  http://teachmetocode.com/screencasts/bash-command-line-editing/
+  
+  ctrl-x ctrl-v : default bash editor
+

bash/param.yml

@@ -0,0 +1,59 @@
+--- 
+bash_param: |
+  Bash parameter expansions
+  =========================
+  
+  NOTE:
+    The `:' character used in many of the expansions is optional.
+    Using the `:' checks for param that is unset or null.
+    Without the `:' checks for param that is unset.
+  
+  | Expansion                | Note                            |
+  |--------------------------+---------------------------------|
+  | ${param}                 | Use value                       |
+  | ${!param}                | Variable indirection            |
+  | ${param:-word}           | Use default value               |
+  | ${param:=word}           | Assign default value            |
+  | ${param:?word}           | Display error                   |
+  | ${param:+word}           | Use alternate value             |
+  | ${param:offset}          | Substring expansion             |
+  | ${param:offset:length}   | Substring expansion with length |
+  | ${!prefix*}              | Name expansion with prefix      |
+  | ${#param}                | Length in characters            |
+  | ${param#word}            | Remove shortest match at start  |
+  | ${param##word}           | Remove longest match at start   |
+  | ${param%word}            | Remove shortest match at end    |
+  | ${param%%word}           | Remove longest match at end     |
+  | ${param/pattern/string}  | Replace first matching pattern  |
+  | ${param//pattern/string} | Replace all matching patterns   |
+  
+  Examples:
+  
+  $ x=yes
+  $ echo ${x}         #=> yes
+  $ echo ${x:-no}     #=> yes
+  $ x=
+  $ echo ${x:-no}     #=> no
+  $ echo ${x-no}      #=> "" <an empty string>
+  $ unset x
+  $ echo ${x:-no}     #=> no
+  $ echo ${x-no}      #=> no
+  
+  $ path='/some/path/to/file.txt'
+  $ echo ${path##*/}  #=> file.txt
+  $ echo ${path%/*}   #=> /some/path/to
+  
+  $ x=yes
+  $ y=x
+  $ echo ${!y}        #=> yes
+  
+  $ x=0123456789
+  $ echo ${x:0}       #=> 0123456789
+  $ echo ${x:3}       #=> 3456789
+  $ echo ${x:3:2}     #=> 34
+  
+  $ xval1=first
+  $ xval2=second
+  $ xval3=third
+  $ echo ${!xval*}    #=> xval1 xval2 xval3
+

bash/scripting.yml

@@ -0,0 +1,94 @@
+--- 
+bash_scripting: |-
+  -z "string"   	 String has zero length
+  -n "string" 	String has non-zero length
+  
+  Note
+  
+  To check whether a variable is set and not blank, use -n "${BLAH}" rather than -n $BLAH. The latter will cause problems in some situations if the variable is unset. 
+  
+  Integer Comparison in bash
+  
+  The general form of integer comparisons is int1 -operator int2. The following are available:
+  Operator 	Purpose
+  -eq 	Integer equality
+  -ne 	Integer inequality
+  -lt 	Integer less than
+  -le 	Integer less than or equal to
+  -gt 	Integer greater than
+  -ge 	Integer greater than or equal to
+  File Tests in bash
+  
+  The general form of a file test is -operator "filename". The following are available (lifted from man bash):
+  Operator 	Purpose
+  -a file 	Exists (use -e instead)
+  -b file 	Exists and is a block special file
+  -c file 	Exists and is a character special file
+  -d file 	Exists and is a directory
+  -e file 	Exists
+  -f file 	Exists and is a regular file
+  -g file 	Exists and is set-group-id
+  -h file 	Exists and is a symbolic link
+  -k file 	Exists and its sticky bit is set
+  -p file 	Exists and is a named pipe (FIFO)
+  -r file 	Exists and is readable
+  -s file 	Exists and has a size greater than zero
+  -t fd 	        Descriptor fd is open and refers to a terminal
+  -u file 	Exists and its set-user-id bit is set
+  -w file 	Exists and is writable
+  -x file 	Exists and is executable
+  -O file 	Exists and is owned by the effective user id
+  -G file 	Exists and is owned by the effective group id
+  -L file 	Exists and is a symbolic link
+  -S file 	Exists and is a socket
+  -N file 	Exists and has been modified since it was last read
+  File Comparison in bash
+  
+  The general form of a file comparison is "file1" -operator "file2". The following are available (lifted from man bash):
+  Operator 	Purpose
+  file1 -nt file2 	file1 is newer (according to modification date) than file2, or if file1 exists and file2 does not.
+  file1 -ot file2 	file1 is older than file2, or if file2 exists and file1 does not.
+  file1 -ef file2 	file1 and file2 refer to the same device and inode numbers.
+  Boolean Algebra in bash
+  
+  There are constructs available for boolean algebra ('and', 'or' and 'not'). These are used outside of the [[ ]] blocks. For operator precedence, use ( ).
+  Construct 	Effect
+  first || second 	first or second (short circuit)
+  first && second 	first and second (short circuit)
+  ! condition 	not condition
+  
+  Note
+  
+  These will also sometimes work inside [[ ]] constructs, and using ! before a test is fairly common. [[ ! -foo ]] && bar is fine. However, there are catches -- [[ -f foo && bar ]] will not work properly, since commands cannot be run inside [[ ]] blocks.
+  
+  Inside [ ] blocks, several -test style boolean operators are available. These should be avoided in favour of [[ ]] and the above operators.
+  
+  To download files that have zero-padded filenames (bob002.jpg etc. in this example):
+  
+  for i in `seq -f "%03g" 1 100`; do wget http://www.example.com/bob$i.jpg; done
+  
+  Change the seq formatting options for more or less padding.
+  
+  Arrays in bash:
+  
+  zombies=(bob tom)
+  zombies[10]='helen'
+   
+  echo 'zombie 0 is' ${zombies[0]}
+  #zombie 0 is bob
+   
+  for name in ${zombies[@]}
+  do
+    echo $name 'is a zombie'
+  done
+  #bob is a zombie
+  #tom is a zombie
+  #helen is a zombie
+   
+  for (( i=0; i < ${#zombies[@]}; i++ ))
+  do
+    echo 'zombie' $i 'is' ${zombies[$i]}
+  done
+  #zombie 0 is bob
+  #zombie 1 is tom
+  #zombie 3 is

css/at_rules.yml

@@ -0,0 +1,29 @@
+--- 
+css_at_rules: |-
+  @charset "ISO-8859-1"; 
+  Specify the encoding of the CSS file
+  
+  @import url("printing.css") print
+  Import additional css file 'printing.css' for print media
+  
+  @page :first { margin: 10cm; }
+  Sets content margins on the first 'page' to 10cm; see also :left and :right.
+  
+  @media screen, print { body { font-size: 10pt } }
+  Set font size for body element for print and screen media
+  
+  In CSS 3 Web Fonts Module:
+    @font-face { 
+     font-family: "My Helvetica"; src: url(my_helvetica.ttf) format("truetype"); 
+    }
+    Load the font "My Helvetica" from the URL.
+  
+  In CSS 3 Namespaces Module:
+    @namespace "http://www.w3.org/1999/xhtml";
+    @namespace svg "http://www.w3.org/2000/svg";
+    The default namespace sets to the XHTML URI, the 'svg' prefix maps SVG URI
+  
+  In CSS 3 Paged Media Module:
+    @page :left { @bottom-left-corner { content: counter(page); } }
+    @page :right { @bottom-right-corner { content: counter(page); } } 
+    Print page numbers on the outside bottom corners of (printed) pages.

css/boxing.yml

@@ -0,0 +1,21 @@
+--- 
+css_boxing: |-
+  +-----------------------------------------------------+
+  :                                                     :
+  :   _______________________________________________   :
+  :  | _____________________________________________ |  :
+  :  ||                                             ||  :
+  :  ||                                             ||  :
+  :  ||   +-------------------------------------+   ||  :
+  :  ||   |                                     |   ||  :
+  :  ||   |      Content (width x height)       |   ||  :
+  :  ||   |                                     |   ||  :
+  :  ||   +-------------------------------------+   ||  :
+  :  ||            Padding (background)             ||  :
+  :  ||_____________________________________________||  :
+  :  |___________________Border______________________|  :
+  :                                                     :
+  :                Margin (transparent)                 :
+  +-----------------------------------------------------+
+  
+     Area = (width,height) + padding + border + margin

css/media.yml

@@ -0,0 +1,27 @@
+--- 
+css_media: |-
+  Common:
+    all           Suitable for all devices.
+    screen        Computer screens and most handheld devices.
+    print         Page-delimited mode for printing and print preview
+  
+  Rare:
+    projection    Projections/presentations, used by Opera 4+ fullscreen mode
+    aural         Speech synthesizers, used by Firevox. Deprecated in CSS 2.1
+    speech        Speech synthesizers, reserved.
+    tv            Television displays, used by WebTV.
+    handheld      Handheld devices, supported by Symbian.
+  
+  Not used by any known agents:
+    braille       Braille tactile feedback devices.
+    embossed      Paged braille printers.
+    tty           Fixed width character grid such as terminals.
+  
+  @import url("fancyfonts.css") screen, print;
+  load the file fancyfonts.css for screen and print within your CSS.
+  
+  @media print { /* style sheet for print goes here */ }
+  Inline style rules for print within your CSS
+  
+  <link rel="stylesheet" type="text/css" media="print" href="print.css">
+  HTML inclusion of different sheets based on agent media type

css/selectors.yml

@@ -0,0 +1,29 @@
+--- 
+css_selectors: |-
+  CSS 1:
+    E               An element of type E
+    S1 S2           Any selector S1 with descendant match S2 (not just children)
+    E F             ... such as element E with descendant element F
+    E.myclass       Element E marked with class "myclass"
+    E#myid          ... with a document ID of "myid"
+    E:link          ... which is an unvisited link
+    E:visited       ... which is a visited link
+    E:active        ... which is activated (such as between mouse down and up)
+    E:hover         ... with a pointing device within its boundaries
+    E:focus         ... which has input device focus
+    E::first-line   The first formatted line of E element
+    E::first-letter The first formatted letter of E element
+    S1, S2          Matching S1 or S2
+  
+  CSS 2.x:
+    *               Special name matching any element
+    S1 > S2         Selector S1 with child matching S2
+    S1 + S2         Selector S1 with immediately following sibling matching S2
+    E[attr]         An E element with a "attr" attribute
+    E[attr="val"]   ... whose value is exactly equal to "val"
+    E[attr~="val"]  ... with "val" as a whitespace-separated element
+    E[attr|="en"]   ... whose value is "en" or begins with "en-" (hreflang)
+    E:first-child   E element, first child of its parent
+    E:lang(fr)      E element in language "fr" (lang or xml:lang)
+    E::before       Generated content before E element (see style 'content')
+    E::after        Generated content after E element (see style 'content')

git/add_i.yml

@@ -0,0 +1,15 @@
+--- 
+git_add_i: |-
+  git-add -i
+  ==========
+  
+  y - stage this hunk
+  n - do not stage this hunk
+  a - stage this and all the remaining hunks in the file
+  d - do not stage this hunk nor any of the remaining hunks in the file
+  j - leave this hunk undecided, see next undecided hunk
+  J - leave this hunk undecided, see next hunk
+  k - leave this hunk undecided, see previous undecided hunk
+  K - leave this hunk undecided, see previous hunk
+  s - split the current hunk into smaller hunks
+  ? - print help