stuff..

invad0r · 0xdnL · Aug 2, 2019 · Aug 2, 2019 · Aug 2, 2019 · Aug 2, 2019
commit 228929274aa0d1f3df85ca473af87d18b02ac114
diff --git a/notes/acronym.md b/notes/acronym.md
@@ -2,13 +2,11 @@
 tags: [Notebooks]
 title: acronym
 created: '2019-08-18T16:14:42.254Z'
-modified: '2019-08-20T08:35:29.028Z'
+modified: '2020-01-03T07:49:27.060Z'
 ---
 
 # acronym
 
- [[ascii]] - `American Standard Code for Infromation Interchange`
-
 ## acid
 > set of properties that guarante reliable databse transactions
 ```
@@ -36,7 +34,6 @@ C R U D
 | Update 	         |  `UPDATE`  | `PATCH` or `PUT` |
 | Delete (Destroy) |  `DELETE`  | `DELETE`         |                                       
 
-
 [[rest api design]]
 
 ## solid
@@ -52,7 +49,9 @@ S O L I D
 
 
 # CAP 
+
 > theorem aka `Brewer's theorem`
+
 ```
 C A P
 | | └─ consistency

diff --git a/notes/ascii.md b/notes/ascii.md
@@ -1,80 +1,48 @@
 ---
 title: ascii
 created: '2019-07-30T06:19:48.987Z'
-modified: '2019-12-30T07:37:59.508Z'
+modified: '2020-01-03T08:40:39.276Z'
 ---
 
 # ascii
 
 > `ASCII - American Standard Code for Infromation Interchange` is a character `encoding`standard for electronic communication
 
-### print all avail. characters
+## usage
 ```sh
-for ((i=32;i<127;i++)) do printf "\\$(printf %03o "$i")"; done printf "\n"
-```
+man ascii   # table hexadecimal
 
-char | oct | hex |dec
-:--  | :-- | :-- |:--
-`"`  | 042 | 22  | 34
-`J`  | 112 | 4a  | 74
+for ((i=32;i<127;i++)) do printf "\\$(printf %03o "$i")"; done printf "\n"    # print all avail. characters
 
 
-```sh
-printf '\112' # or 
-echo $'\112'  # octal 
-
-printf '\x4a' # hex
-
-printf "\\$(printf %o 74)" # or 
-xxd -r <<<'0 4a'           # decimal
-```
-
-
-## get decimal-set
-```sh
+# get decimal-set
 echo '"' | tr -d "\n" | od -An -t uC
 #          |            └────────────────  Use od (octal dump) to print:
 #          |                                   -An    means Address none
 #    remove "newline" char                     -t     select a type
-#                                              u      type is unsigned decimal.
-#                                              C      of size (one) char
-```
+#                                                  u  type is unsigned decimal.
+#                                                  C  of size (one) char
 
 
-## table hexadecimal
-`man ascii`
+printf '\112' # or 
+echo $'\112'  # octal 
+
+printf '\x4a' # hex
+
+printf "\\$(printf %o 74)" # or 
 
+xxd -r <<<'0 4a'           # decimal
 ```
-#     _0    _1    _2    _3    _4    _5    _6    _7    _8    _9    _A    _B    _C    _D    _E    _F
-
-# 0_  NUL   SOH   STX   ETX   EOT   ENQ   ACK   BEL   BS    HT    LF    VT    FF    CR    SO    SI
-# 0   0000  0001  0002  0003  0004  0005  0006  0007  0008  0009  000A  000B  000C  000D  000E  000F
-
-# 1_  DLE   DC1   DC2   DC3   DC4   NAK   SYN   ETB   CAN   EM    SUB   ESC   FS    GS    RS    US
-# 16  0010  0011  0012  0013  0014  0015  0016  0017  0018  0019  001A  001B  001C  001D  001E  001F
-
-# 2_  SP     !    "     #     $     %     &     '     (     )     *     +     ,     -     .     /
-# 32  0020  0021  0022  0023  0024  0025  0026  0027  0028  0029  002A  002B  002C  002D  002E  002F 
 
-# 3_  0     1     2     3     4     5     6     7     8     9     :     ;     <     =     >     ?
-# 48  0030  0031  0032  0033  0034  0035  0036  0037  0038  0039  003A  003B  003C  003D  003E  003F 
-
-# 4_  @     A     B     C     D     E     F     G     H     I     J     K     L     M     N     O
-# 64  0040  0041  0042  0043  0044  0045  0046  0047  0048  0049  004A  004B  004C  004D  004E  004F 
-
-# 5_  P     Q     R     S     T     U     V     W     X     Y     Z     [     \     ]     ^     _
-# 80  0050  0051  0052  0053  0054  0055  0056  0057  0058  0059  005A  005B  005C  005D  005E  005F
-
-# 6_  `     a     b     c     d     e     f     g     h     i     j     k     l     m     n     o
-# 96  0060  0061  0062  0063  0064  0065  0066  0067  0068  0069  006A  006B  006C  006D  006E  006F
-
-# 7_   p     q     r     s    t      u     v     w     x     y     z     {     |     }     ~     DEL
-# 112  0070  0071  0072  0073  0074  0075  0076  0077  0078  0079  007A  007B  007C  007D  007E  007F
-```
+char | oct | hex |dec
+:--  | :-- | :-- |:--
+`"`  | 042 | 22  | 34
+`J`  | 112 | 4a  | 74
 
 ## see also
 - [[url encoding]]
 - [[ascii character set]]
 - [[xxd]]
 - [[od]]
 - [Jafrog's dev blog](http://jafrog.com/2013/11/23/colors-in-terminal.html)
+- http://asciimoji.com/
diff --git a/notes/awk array.md b/notes/awk array.md
@@ -0,0 +1,33 @@
+---
+tags: [awk]
+title: awk array
+created: '2020-01-03T07:43:52.878Z'
+modified: '2020-01-06T08:04:22.018Z'
+---
+
+# awk array
+
+## usage
+```sh
+awk '{array[$5] += $4}END{
+  for(var in array){ 
+    printf("%s: %s GB\n",var, array[var]/1024/1024/1024)
+  } 
+}'
+
+awk '{
+  node[1]+=$3;
+  node[2]+=$4;
+  node[3]+=$5;
+  node[4]+=$6;
+  }END{ 
+    for(i in node){
+      printf("elastic-monitor-1-data-%s %s GB\n",i, node[i]/1024)
+      } 
+}'
+```
+
+## see also
+- [[awk]]
+- [[awk variable]]
+- [[awk function]]
diff --git a/notes/awk function.md b/notes/awk function.md
@@ -0,0 +1,33 @@
+---
+tags: [awk]
+title: awk function
+created: '2020-01-03T07:42:16.401Z'
+modified: '2020-01-06T08:05:28.432Z'
+---
+
+# awk function
+
+## usage
+```sh
+printf "%10.0f\n" 1.28071e+09                     # print scientific notation as float to stdout
+
+var = fprintf("%s %d %.2f\n", "Testing", 1, 3) }  # assigns its output to a variable, not stdout
+
+split($1,swm,".");                                # split $1 into array swm[] with optional seperator "."
+
+substr("foobar", 2, 3)                            # => "oob"
+
+substr("foobar", 4)                               # => "bar"
+
+length("foo")                                     # => 3
+
+tolower("FOO")                                    # => "foo"
+
+toupper("foo")                                    # => "FOO"
+
+gsub(/"/, "")                                     # remove quotes globally
+```
+
+## see also
+- [[awk]]
+- [[awk variable]]
diff --git a/notes/awk snippet.md b/notes/awk snippet.md
diff --git a/notes/awk variable.md b/notes/awk variable.md
@@ -0,0 +1,46 @@
+---
+tags: [awk]
+title: awk variable
+created: '2020-01-03T07:41:12.778Z'
+modified: '2020-01-06T08:12:12.983Z'
+---
+
+# awk variable
+
+## 2 types
+- Variable which defines values which can be changed such as field separator `FS` and record separator `RS`
+- Variable which can be used for processing and reports such as Number of records, number of fields
+```sh
+CONVFMT       # conversion format used when converting numbers (default %.6g)
+
+FS            # input field separator; regular expression used to separate fields; also settable by option -Ffs.
+
+NF            # number of fields in the current record
+
+NR            # ordinal number of the current record
+
+FNR           # ordinal number of the current record in the current file
+              # Number of Records relative to the current input file / when using two input files => seperate RecordNumbers
+
+FILENAME      # the name of the current input file
+
+RS            # input record separator (default newline)
+
+OFS           # output field separator (default blank)
+
+ORS           # output record separator (default newline)
+
+OFMT          # output format for numbers (default %.6g)
+
+SUBSEP        # separates multiple subscripts (default 034)
+
+ARGC          # argument count, assignable
+
+ARGV          # argument array, assignable; non-null members are taken as filenames
+
+ENVIRON       # array of environment variables; subscripts are names.
+```
+
+## see also
+- [[awk]]
+- [[awk function]]