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Full Discussion: Subtracting values from variable
Top Forums Shell Programming and Scripting Subtracting values from variable Post 302714479 by sdosanjh on Friday 12th of October 2012 08:35:44 AM
Old 10-12-2012
Subtracting values from variable
Legends,

Please help me in , how do i subtract the variable values listed like below.
the first value of orig should be subtracted from first value of prev and so on.

Code:
san> echo $orig
346 316 340 239 410 107 291 139 128 230 167 147 159 159 172 116 110 260 177 0 177 169 168 186 165 366 195 131 7 143 60 276 149 114 120 110 103 5 0 87 79 104 101 142 184 13 278 2 153 160 0 5 101 127 151 14 196 138 90 177 195 166 135 122 136 117 169 518 244 125 116 127 117 131 129 121 120 164 218 105 111 122 127 123 117 168 536 192 177 133 130 160 78 126 678 277 294 297 842 78

san> echo $prev
346 316 340 239 410 107 291 139 128 230 166 147 159 159 172 116 110 260 177 0 177 167 168 186 165 366 195 131 7 143 60 276 145 114 120 110 103 5 0 87 79 101 99 140 184 13 278 2 153 160 0 5 99 125 150 14 196 136 87 177 195 162 135 121 136 113 169 518 244 125 116 127 117 131 129 119 117 164 218 101 111 122 127 123 116 168 536 192 177 133 130 160 78 126 678 277 294 297 842 78

Pls help
 

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LEARN ABOUT BSD

ascii

ASCII(7)						 Miscellaneous Information Manual						  ASCII(7)

NAME

       ascii - map of ASCII character set

SYNOPSIS

       cat /usr/pub/ascii

DESCRIPTION

       Ascii is a map of the ASCII character set, to be printed as needed.  It contains:

       |000 nul|001 soh|002 stx|003 etx|004 eot|005 enq|006 ack|007 bel|
       |010 bs |011 ht |012 nl |013 vt |014 np |015 cr |016 so |017 si |
       |020 dle|021 dc1|022 dc2|023 dc3|024 dc4|025 nak|026 syn|027 etb|
       |030 can|031 em |032 sub|033 esc|034 fs |035 gs |036 rs |037 us |
       |040 sp |041  ! |042  " |043  # |044  $ |045  % |046  & |047  ' |
       |050  ( |051  ) |052  * |053  + |054  , |055  - |056  . |057  / |
       |060  0 |061  1 |062  2 |063  3 |064  4 |065  5 |066  6 |067  7 |
       |070  8 |071  9 |072  : |073  ; |074  < |075  = |076  > |077  ? |
       |100  @ |101  A |102  B |103  C |104  D |105  E |106  F |107  G |
       |110  H |111  I |112  J |113  K |114  L |115  M |116  N |117  O |
       |120  P |121  Q |122  R |123  S |124  T |125  U |126  V |127  W |
       |130  X |131  Y |132  Z |133  [ |134   |135  ] |136  ^ |137  _ |
       |140  ` |141  a |142  b |143  c |144  d |145  e |146  f |147  g |
       |150  h |151  i |152  j |153  k |154  l |155  m |156  n |157  o |
       |160  p |161  q |162  r |163  s |164  t |165  u |166  v |167  w |
       |170  x |171  y |172  z |173  { |174  | |175  } |176  ~ |177 del|

       | 00 nul| 01 soh| 02 stx| 03 etx| 04 eot| 05 enq| 06 ack| 07 bel|
       | 08 bs | 09 ht | 0a nl | 0b vt | 0c np | 0d cr | 0e so | 0f si |
       | 10 dle| 11 dc1| 12 dc2| 13 dc3| 14 dc4| 15 nak| 16 syn| 17 etb|
       | 18 can| 19 em | 1a sub| 1b esc| 1c fs | 1d gs | 1e rs | 1f us |
       | 20 sp | 21  ! | 22  " | 23  # | 24  $ | 25  % | 26  & | 27  ' |
       | 28  ( | 29  ) | 2a  * | 2b  + | 2c  , | 2d  - | 2e  . | 2f  / |
       | 30  0 | 31  1 | 32  2 | 33  3 | 34  4 | 35  5 | 36  6 | 37  7 |
       | 38  8 | 39  9 | 3a  : | 3b  ; | 3c  < | 3d  = | 3e  > | 3f  ? |
       | 40  @ | 41  A | 42  B | 43  C | 44  D | 45  E | 46  F | 47  G |
       | 48  H | 49  I | 4a  J | 4b  K | 4c  L | 4d  M | 4e  N | 4f  O |
       | 50  P | 51  Q | 52  R | 53  S | 54  T | 55  U | 56  V | 57  W |
       | 58  X | 59  Y | 5a  Z | 5b  [ | 5c   | 5d  ] | 5e  ^ | 5f  _ |
       | 60  ` | 61  a | 62  b | 63  c | 64  d | 65  e | 66  f | 67  g |
       | 68  h | 69  i | 6a  j | 6b  k | 6c  l | 6d  m | 6e  n | 6f  o |
       | 70  p | 71  q | 72  r | 73  s | 74  t | 75  u | 76  v | 77  w |
       | 78  x | 79  y | 7a  z | 7b  { | 7c  | | 7d  } | 7e  ~ | 7f del|

FILES

       /usr/pub/ascii

7th Edition							   May 20, 1985 							  ASCII(7)
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