Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: GPS extracts fix delta time
Top Forums Shell Programming and Scripting GPS extracts fix delta time Post 302908108 by redafenj on Thursday 3rd of July 2014 03:34:49 PM
Old 07-03-2014
GPS extracts fix delta time
Hello all,

I am currently trying to find the delta time from some GPS log.

I am using the following script with awk. But the script result shows some incorrect values (delta time some time = 0.2 but when I check it manually it is equal to 0.1)

My final goal is to get a script that print the line number where the GPS fix are not equal to 0.1

Could you please help to find my mistake ?

Thanks for your help;

Script used :
Code:
#!/bin/bash
echo check gps fix time stamp
awk '{print substr( $0, 8, 10)}' $1 > gps_time_stamp.txt

awk 'NR % 2 !=0 {a=$1} NR % 2 ==0 {b=$1-a;print b}' gps_time_stamp.txt > gps_fix_period.txt

Log Example
Code:
$GPRMC,124711.567,V,,,,,0.06,330.27,160514,,,N*4D
$GPRMC,124711.667,V,,,,,0.09,330.27,160514,,,N*41
$GPRMC,124711.767,V,,,,,0.08,330.27,160514,,,N*41
$GPRMC,124711.867,V,,,,,0.12,330.27,160514,,,N*45
$GPRMC,124711.967,V,,,,,0.04,330.27,160514,,,N*43
$GPRMC,124712.067,V,,,,,0.08,330.27,160514,,,N*45
$GPRMC,124712.167,V,,,,,0.10,330.27,160514,,,N*4D
$GPRMC,124712.267,V,,,,,0.07,330.27,160514,,,N*48
$GPRMC,124712.367,V,,,,,0.05,330.27,160514,,,N*4B
$GPRMC,124712.467,V,,,,,0.05,330.27,160514,,,N*4C
$GPRMC,124712.567,V,,,,,0.19,330.27,160514,,,N*40
$GPRMC,124712.667,V,,,,,0.05,330.27,160514,,,N*4E
$GPRMC,124712.767,V,,,,,0.18,330.27,160514,,,N*43
$GPRMC,124712.867,V,,,,,0.09,330.27,160514,,,N*4C
$GPRMC,124712.967,V,,,,,0.02,330.27,160514,,,N*46
$GPRMC,124713.067,V,,,,,0.11,330.27,160514,,,N*4C
$GPRMC,124713.167,V,,,,,0.02,330.27,160514,,,N*4F
$GPRMC,124713.267,V,,,,,0.06,330.27,160514,,,N*48
$GPRMC,124713.367,V,,,,,0.13,330.27,160514,,,N*4D
$GPRMC,124713.467,V,,,,,0.02,330.27,160514,,,N*4A
$GPRMC,124713.567,V,,,,,0.04,330.27,160514,,,N*4D
$GPRMC,124713.667,V,,,,,0.10,330.27,160514,,,N*4B
$GPRMC,124713.767,V,,,,,0.11,330.27,160514,,,N*4B

Last edited by Don Cragun; 07-03-2014 at 06:06 PM.. Reason: Add CODE tags.
 

9 More Discussions You Might Find Interesting

1. Solaris

Daylight Savings Time Fix

Hello, I've been looking at coming up with a time change on my Sun workstations since daylight savings time comes early this year. Someone at work told me that a sun patch is available if you have a maintenance contract. It was recommended to just set your systems to GMT time zone. How is this... (5 Replies)
Discussion started by: stocksj
5 Replies

2. Shell Programming and Scripting

Getting MAC from GPS unit

Never mind i got the answer thanks., (0 Replies)
Discussion started by: deaconf19
0 Replies

3. Shell Programming and Scripting

How to have a Script that extracts files?

Hi, I know there is a way to have a script that include files in a way that once we run the script, it would extract those files. Kinda similar to how zip files work. For example: - I have a script called test.sh - Once I run this script, it will extract file1, file2 and file3 and then... (2 Replies)
Discussion started by: pgarousi
2 Replies

4. Shell Programming and Scripting

Creating DELTA file in UNIX

I have a fixed length file (854 characters file). Our project will start getting this file soon. On the first day this file will have 100000 records. From the next day the file will have all the records from previous day + some new records (there will be few additions + few changes in day1... (13 Replies)
Discussion started by: varunrbs
13 Replies

5. UNIX for Advanced & Expert Users

Extracts files names and write those to another file in different directory

Hi , Need to shell script to extracts files names and write those to another file in different directory. input file is inputfile.txt abc|1|bcd.dat 123 david123 123 rudy2345 124 tinku5634 abc|1|def.dat 123 jevid123 123 qwer2345 124 ghjlk5634 abc|1|pqr.txt 123 vbjnnjh435 123 jggdy876... (9 Replies)
Discussion started by: dssyadav
9 Replies

6. Shell Programming and Scripting

File delta detection

Hello, I need to compare two flat files (ASCII format), say file OLD and file NEW. Both have similar structure. These files are | delimitted files and have around few million of records (lines) each. Each file has same set columns and same set of key columns (i.e. the 3rd and 5th column of the... (7 Replies)
Discussion started by: manubatham20
7 Replies

7. Shell Programming and Scripting

Nested if statements with word/number extracts

Hi everyone! I'm having difficulties setting up a complex script with nested if statements while doing some word extracts, any help is appreciated. Scenario: 1- Check if the file.txt has the word BINGO 2- If so then get the available number (any number) in the line that contains the word... (8 Replies)
Discussion started by: demmel
8 Replies

8. Shell Programming and Scripting

Delta from the first digit

Thanks of your suggestions i was able to calculate the delta between some numbers in a column file with . awk 'BEGIN{last=0}{delta=$1-last; last=$1; print $0" "delta}' the file was like 499849120.00 500201312.00 500352416.00 500402784.00 500150944.00 499849120.00 500150944.00... (3 Replies)
Discussion started by: Board27
3 Replies

9. Shell Programming and Scripting

UTC to GPS

Gents, Kindly can u help with this. I would like to get GPS time from UTC Input 17/11/27 03:13:50:480000 17/11/27 03:12:54:380000 17/11/27 03:14:39:980000 output desired. 17/11/27 03:13:50:480000 1195787648480000 17/11/27 03:12:54:380000 1195787592380000 17/11/27... (6 Replies)
Discussion started by: jiam912
6 Replies

LEARN ABOUT OPENSOLARIS

iconv_koi8-r

iconv_koi8-r(5)                                         Standards, Environments, and Macros                                        iconv_koi8-r(5)

NAME

       iconv_koi8-r - code set conversion tables for KOI8-R

DESCRIPTION

       The following code set conversions are supported:

       +-------------------------------------------------------------------------+
       |                     Code Set Conversions Supported                      |
       +--------------+--------+--------------+--------+-------------------------+
       |    Code      |Symbol  |Target Code   |Symbol  |      Target Output      |
       +--------------+--------+--------------+--------+-------------------------+
       |KOI8-R        |koi8    |ISO 8859-5    |iso5    | ISO 8859-5 Cyrillic     |
       +--------------+--------+--------------+--------+-------------------------+
       |KOI8-R        |koi8    |PC Cyrillic   |alt     | Alternative PC Cyrillic |
       +--------------+--------+--------------+--------+-------------------------+
       |KOI8-R        |koi8    |MS 1251       |win5    | Windows Cyrillic        |
       +--------------+--------+--------------+--------+-------------------------+
       |KOI8-R        |koi8    |Mac Cyrillic  |mac     | Macintosh Cyrillic      |
       +--------------+--------+--------------+--------+-------------------------+

CONVERSIONS

       The conversions are performed according to the following tables. All values in the tables are given in octal.

   KOI8-R to ISO 8859-5
       For the conversion of KOI8-R to ISO 8859-5, all characters not in the following table are mapped unchanged.

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       |    KOI8-R     |  ISO 8859-5    |    KOI8-R      |  ISO 8859-5   |
       |24             | 4              |320             |337            |
       |241            | 362            |321             |357            |
       |242            | 363            |322             |340            |
       |243            | 361            |323             |341            |
       |244            | 364            |324             |342            |
       |245            | 365            |325             |343            |
       |246            | 366            |327             |322            |
       |247            | 367            |330             |354            |
       |250            | 370            |331             |353            |
       |251            | 371            |332             |327            |
       |252            | 372            |333             |350            |
       |253            | 373            |334             |355            |
       |254            | 374            |335             |351            |
       |256            | 376            |336             |347            |
       |257            | 377            |337             |352            |
       |260            | 360            |340             |316            |
       |261            | 242            |341             |260            |
       |262            | 243            |342             |261            |
       |263            | 241            |343             |306            |
       |264            | 244            |344             |264            |
       |265            | 245            |345             |265            |
       |266            | 246            |346             |304            |
       |267            | 247            |347             |263            |
       |270            | 250            |350             |305            |
       |271            | 251            |351             |270            |
       |272            | 252            |352             |271            |
       |273            | 253            |353             |272            |
       |274            | 254            |354             |273            |
       |275            | 255            |355             |274            |
       |276            | 256            |356             |275            |
       |277            | 257            |357             |276            |
       |300            | 356            |360             |277            |
       |301            | 320            |361             |317            |
       |302            | 321            |362             |300            |
       |303            | 346            |363             |301            |
       |304            | 324            |364             |302            |
       |305            | 325            |365             |303            |
       |306            | 344            |366             |266            |
       |307            | 323            |367             |262            |
       |310            | 345            |370             |314            |
       |311            | 330            |371             |313            |
       |312            | 331            |372             |267            |
       |313            | 332            |373             |310            |
       |314            | 333            |374             |315            |
       |315            | 334            |375             |311            |
       |316            | 335            |376             |307            |
       |317            | 336            |                |               |
       +---------------+----------------+----------------+---------------+

   KOI8-R to PC Cyrillic
       For the conversion of KOI8-R to PC Cyrillic, all characters not in the following table are mapped unchanged.

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       |    KOI8-R     |  PC Cyrillic   |    KOI8-R      | PC Cyrillic   |
       |24             | 4              |333             |350            |
       |200-242        | 40             |334             |355            |
       |243            | 361            |335             |351            |
       |244-254        | 40             |336             |347            |
       |255            | 260            |337             |352            |
       |256-262        | 40             |340             |236            |
       |263            | 360            |341             |200            |
       |264-274        | 40             |342             |201            |
       |275            | 260            |343             |226            |
       |276-277        | 40             |344             |204            |
       |300            | 356            |345             |205            |
       |301            | 240            |346             |224            |
       |302            | 241            |347             |203            |
       |303            | 346            |350             |225            |
       |304            | 244            |351             |210            |
       |305            | 245            |352             |211            |
       |306            | 344            |353             |212            |
       |307            | 243            |354             |213            |
       |310            | 345            |355             |214            |
       |311            | 250            |356             |215            |
       |312            | 251            |357             |216            |
       |313            | 252            |360             |217            |
       |314            | 253            |361             |237            |
       |315            | 254            |362             |220            |
       |316            | 255            |363             |221            |
       |317            | 256            |364             |222            |
       |320            | 257            |365             |223            |
       |321            | 357            |366             |206            |
       |322            | 340            |367             |202            |
       |323            | 341            |370             |234            |
       |324            | 342            |371             |233            |
       |325            | 343            |372             |207            |
       |326            | 246            |373             |230            |
       |327            | 242            |374             |235            |
       |330            | 354            |375             |231            |
       |331            | 353            |376             |227            |
       |332            | 247            |                |               |
       +---------------+----------------+----------------+---------------+

   KOI8-R to MS 1251
       For the conversion of KOI8-R to MS 1251, all characters not in the following table are mapped unchanged.

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       |    KOI8-R     |    MS 1251     |    KOI8-R      |   MS 1251     |
       |24             | 4              |317             |356            |
       |200-237        | 40             |320             |357            |
       |241            | 220            |321             |377            |
       |242            | 203            |322             |360            |
       |243            | 270            |323             |361            |
       |244            | 272            |324             |362            |
       |245            | 276            |325             |363            |
       |246            | 263            |326             |346            |
       |247            | 277            |327             |342            |
       |250            | 274            |330             |374            |
       |251            | 232            |331             |373            |
       |252            | 234            |332             |347            |
       |253            | 236            |333             |370            |
       |254            | 235            |334             |375            |
       |255            | 210            |335             |371            |
       |256            | 242            |336             |367            |
       |257            | 237            |337             |372            |
       |260            | 271            |340             |336            |
       |261            | 200            |341             |300            |
       |262            | 201            |342             |301            |
       |263            | 250            |343             |326            |
       |264            | 252            |344             |304            |
       |265            | 275            |345             |305            |
       |266            | 262            |346             |324            |
       |267            | 257            |347             |303            |
       |270            | 243            |350             |325            |
       |271            | 212            |351             |310            |
       |272            | 214            |352             |311            |
       |273            | 216            |353             |312            |
       |274            | 215            |354             |313            |
       |275            | 210            |355             |314            |
       |276            | 241            |356             |315            |
       |277            | 217            |357             |316            |
       |300            | 376            |360             |317            |
       |301            | 340            |361             |337            |
       |302            | 341            |362             |320            |
       |303            | 366            |363             |321            |
       |304            | 344            |364             |322            |
       |305            | 345            |365             |323            |
       |306            | 364            |366             |306            |
       |307            | 343            |367             |302            |
       |310            | 365            |370             |334            |
       |311            | 350            |371             |333            |
       |312            | 351            |372             |307            |
       |313            | 352            |373             |330            |
       |314            | 353            |374             |335            |
       |315            | 354            |375             |331            |
       |316            | 355            |376             |327            |
       |376            | 227            |                |               |
       +---------------+----------------+----------------+---------------+

   KOI8-R to Mac Cyrillic
       For the conversion of KOI8-R to Mac Cyrillic, all characters not in the following table are mapped unchanged.

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       |    KOI8-R     | Mac Cyrillic   |    KOI8-R      | Mac Cyrillic  |
       |24             | 4              |317             |356            |
       |200-237        | 40             |320             |357            |
       |240            | 312            |321             |337            |
       |241            | 254            |322             |360            |
       |242            | 257            |323             |361            |
       |243            | 336            |324             |362            |
       |244            | 271            |325             |363            |
       |245            | 317            |326             |346            |
       |246            | 264            |327             |342            |
       |247            | 273            |330             |374            |
       |250            | 300            |331             |373            |
       |251            | 275            |332             |347            |
       |252            | 277            |333             |370            |
       |253            | 40             |334             |375            |
       |254            | 316            |335             |371            |
       |255            | 40             |336             |367            |
       |256            | 331            |337             |372            |
       |257            | 333            |340             |236            |
       |260            | 334            |341             |200            |
       |261            | 253            |342             |201            |
       |262            | 256            |343             |226            |
       |263            | 335            |344             |204            |
       |264            | 270            |345             |205            |
       |265            | 301            |346             |224            |
       |266            | 247            |347             |203            |
       |267            | 272            |350             |225            |
       |270            | 267            |351             |210            |
       |271            | 274            |352             |211            |
       |272            | 276            |353             |212            |
       |273            | 40             |354             |213            |
       |274            | 315            |355             |214            |
       |275            | 40             |356             |215            |
       |276            | 330            |357             |216            |
       |277            | 332            |360             |217            |
       |300            | 376            |361             |237            |
       |301            | 340            |362             |220            |
       |302            | 341            |363             |221            |
       |303            | 366            |364             |222            |
       |304            | 344            |365             |223            |
       |305            | 345            |366             |206            |
       |306            | 364            |367             |202            |
       |307            | 343            |370             |234            |
       |310            | 365            |371             |233            |
       |311            | 350            |372             |207            |
       |312            | 351            |373             |230            |
       |313            | 352            |374             |235            |
       |314            | 353            |375             |231            |
       |315            | 354            |376             |227            |
       |316            | 355            |                |               |
       +---------------+----------------+----------------+---------------+

FILES

       /usr/lib/iconv/*.so             conversion modules

       /usr/lib/iconv/*.t              conversion tables

       /usr/lib/iconv/iconv_data       list of conversions supported by conversion tables

SEE ALSO

       iconv(1), iconv(3C), iconv(5)

SunOS 5.10                                                          18 Apr 1997                                                    iconv_koi8-r(5)
All times are GMT -4. The time now is 12:33 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy