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Top Forums Shell Programming and Scripting Read n lines from a text files getting n from within the text file Post 302852953 by malandisa on Thursday 12th of September 2013 08:16:37 PM
Old 09-12-2013
Read n lines from a text files getting n from within the text file

I dont even have a sample script cause I dont know where to start from. My data lookes like this
Code:
> sat#16 #data: 15 site:UNZA baseline:  205.9151
  0.008   -165.2465     35.8109     40.6685     21.9148    121.1446     26.4629    -18.4976     33.8722
  0.017   -165.2243     48.2201     40.6908     21.9058    120.8975     26.4179    -18.4794     33.8951
  0.025   -165.1857     41.5258     40.7293     21.9056    120.6503     26.3729    -18.4611     33.9179
  0.033   -165.1438     33.9471     40.7713     21.9072    120.4031     26.3278    -18.4427     33.9407
  0.042   -165.1106     40.8982     40.8045     21.9039    120.1559     26.2826    -18.4242     33.9635
  0.050   -165.0913     38.5970     40.8238     21.8932    119.9087     26.2375    -18.4056     33.9862
  0.058   -165.0968     43.7509     40.8183     21.8692    119.6616     26.1922    -18.3868     34.0089
  0.067   -165.0654     40.7461     40.8497     21.8649    119.4144     26.1470    -18.3680     34.0316
  0.075   -165.0817     46.2518     40.8334     21.8350    119.1672     26.1016    -18.3490     34.0542
  0.083   -165.0412     40.4513     40.8739     21.8355    118.9200     26.0563    -18.3299     34.0768
  0.092   -165.0533     44.7589     40.8617     21.8078    118.6728     26.0108    -18.3107     34.0994
  0.100   -165.0425     43.8650     40.8726     21.7924    118.4256     25.9653    -18.2913     34.1219
  0.108   -165.0378     39.0059     40.8773     21.7736    118.1784     25.9198    -18.2719     34.1444
  0.117   -165.0049     44.6828     40.9102     21.7699    117.9312     25.8741    -18.2523     34.1668
> sat#19 #data: 6 site:UNZA baseline:  235.0682
 17.900   -171.3423     62.8450     63.7259     26.5775    325.4868     15.0105     -7.3923     22.8404
 17.908   -171.5057     55.5991     63.5625     26.6247    325.4057     15.2054     -7.4669     22.8738
 17.917   -171.7347     53.3075     63.3335     26.6444    325.3236     15.4003     -7.5407     22.9067
 17.925   -172.0204     57.9098     63.0478     26.6402    325.2407     15.5952     -7.6138     22.9393
 17.933   -172.2141     50.7400     62.8541     26.6748    325.1568     15.7902     -7.6860     22.9714
 17.942   -172.4885     48.0680     62.5797     26.6751    325.0720     15.9851     -7.7575     23.0031
> sat# 1 #data: 8 site:UNZA baseline:  225.5519
  0.008   -148.7547     75.6631     76.7972     65.5288     89.3165     56.3463    -15.3538     30.6348
  0.017   -148.7668     73.5426     76.7851     65.5199     89.7731     56.3486    -15.3715     30.6350
  0.025   -148.7836     80.0087     76.7683     65.5057     90.2296     56.3488    -15.3892     30.6352
  0.033   -148.7821     76.5570     76.7698     65.5058     90.6859     56.3469    -15.4069     30.6354
  0.042   -148.7916     78.7440     76.7603     65.4952     91.1420     56.3430    -15.4246     30.6356
  0.050   -148.8006     74.6552     76.7513     65.4836     91.5978     56.3370    -15.4423     30.6359
  0.058   -148.8115     73.8469     76.7404     65.4692     92.0532     56.3289    -15.4600     30.6362
  0.067   -148.8211     75.2542     76.7308     65.4545     92.5083     56.3188    -15.4777     30.6365

and so on. I need the sript to read the first line with text and use the #data value to determine how many lines to read below this text line, then read those lines of data, then read the next line with text and use the #data value to count how namy lines to read below that and so on.

To be honext I have no idea where to start from. And honestly I am not completely new to shell scripting but this has challenged me to the core. This is not an assignment, its for my rresearch work am a seniour lecturer in the department of physics at the university of zambia in lusaka, zambia. I hope it is doable.

The read data can be directed to a gnuplot ot output to a file.

Thank you in advance
 

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ASCII(7)						 Miscellaneous Information Manual						  ASCII(7)

NAME
ascii - the ASCII character set. DESCRIPTION
The ASCII character set is as follows: |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| ASCII(7)
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