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Full Discussion: appending data to last line of file
Top Forums Shell Programming and Scripting appending data to last line of file Post 302431276 by malcolmpdx on Monday 21st of June 2010 09:52:58 AM
Old 06-21-2010
appending data to last line of file
A friend contacted me recently with an interesting question. We got something worked out, but I'm curious what answers you all can come up with.

Given a shell script (in bash) that processes a bunch of data and appends it to a file, how would you append the date, time, and a filename to the last line of the output?

Example:

output file:

Code:
355.355 234.123. 229.812
355.355 234.153. 229.815
355.335 234.123. 229.812

Desired output
Code:
355.355 234.123. 229.812
355.355 234.153. 229.815
355.335 234.123. 229.812 06/21/10 00:12:43 data.txt

Assume further that this has to happen separately from the part of the script that actually produces the data. It's a function that someone else wrote, and can't be changed. For what it's worth, I first suggested that some sort of time/date/file block be added at the start of the data file. But the requirements above are what my friend wanted, so that's the question.
 

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LEARN ABOUT OPENSOLARIS

iconv_pc_cyr

iconv_pc_cyr(5)                                         Standards, Environments, and Macros                                        iconv_pc_cyr(5)

NAME

       iconv_pc_cyr - code set conversion tables for Alternative PC Cyrillic

DESCRIPTION

       The following code set conversions are supported:

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

CONVERSIONS

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

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

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       | PC Cyrillic   |  ISO 8859-5    | PC Cyrillic    |  ISO 8859-5   |
       |24             | 4              |231             |311            |
       |200            | 260            |232             |312            |
       |201            | 261            |233             |313            |
       |202            | 262            |234             |314            |
       |203            | 263            |235             |315            |
       |204            | 264            |236             |316            |
       |205            | 265            |237             |317            |
       |206            | 266            |240             |320            |
       |207            | 267            |241             |321            |
       |210            | 270            |242             |322            |
       |211            | 271            |243             |323            |
       |212            | 272            |244             |324            |
       |213            | 273            |245             |325            |
       |214            | 274            |246             |326            |
       |215            | 275            |247             |327            |
       |216            | 276            |250             |330            |
       |217            | 277            |251             |331            |
       |220            | 300            |252             |332            |
       |221            | 301            |253             |333            |
       |222            | 302            |254             |334            |
       |223            | 303            |255             |335            |
       |224            | 304            |256             |336            |
       |225            | 305            |257             |337            |
       |226            | 306            |260-337         |255            |
       |227            | 307            |360             |241            |
       |230            | 310            |362-376         |255            |
       +---------------+----------------+----------------+---------------+

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

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       | PC Cyrillic   |    KOI8-R      | PC Cyrillic    |    KOI8-R     |
       |24             | 4              |242             |327            |
       |200            | 341            |243             |307            |
       |201            | 342            |244             |304            |
       |202            | 367            |245             |305            |
       |203            | 347            |246             |326            |
       |204            | 344            |247             |332            |
       |205            | 345            |250             |311            |
       |206            | 366            |251             |312            |
       |207            | 372            |252             |313            |
       |210            | 351            |253             |314            |
       |211            | 352            |254             |315            |
       |212            | 353            |255             |316            |
       |213            | 354            |256             |317            |
       |214            | 355            |257             |320            |
       |215            | 356            |260-337         |255            |
       |216            | 357            |340             |322            |
       |217            | 360            |341             |323            |
       |220            | 362            |342             |324            |
       |221            | 363            |343             |325            |
       |222            | 364            |344             |306            |
       |223            | 365            |345             |310            |
       |224            | 346            |346             |303            |
       |225            | 350            |347             |336            |
       |226            | 343            |350             |333            |
       |227            | 376            |351             |335            |
       |230            | 373            |352             |337            |
       |231            | 375            |353             |331            |
       |232            | 377            |354             |330            |
       |233            | 371            |355             |334            |
       |234            | 370            |356             |300            |
       |235            | 374            |357             |321            |
       |236            | 340            |360             |263            |
       |237            | 361            |361             |243            |
       |240            | 301            |362-376         |255            |
       |241            | 302            |                |               |
       +---------------+----------------+----------------+---------------+

   PC Cyrillic to MS 1251
       For the conversion of PC Cyrillic to MS 1251, all characters not in the following table are mapped unchanged.

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       | PC Cyrillic   |    MS 1251     | PC Cyrillic    |   MS 1251     |
       |24             | 4              |242             |342            |
       |200            | 300            |243             |343            |
       |201            | 301            |244             |344            |
       |202            | 302            |245             |345            |
       |203            | 303            |246             |346            |
       |204            | 304            |247             |347            |
       |205            | 305            |250             |350            |
       |206            | 306            |251             |351            |
       |207            | 307            |252             |352            |
       |210            | 310            |253             |353            |
       |211            | 311            |254             |354            |
       |212            | 312            |255             |355            |
       |213            | 313            |256             |356            |
       |214            | 314            |257             |357            |
       |215            | 315            |260-337         |210            |
       |216            | 316            |340             |360            |
       |217            | 317            |341             |361            |
       |220            | 320            |342             |362            |
       |221            | 321            |343             |363            |
       |222            | 322            |344             |364            |
       |223            | 323            |345             |365            |
       |224            | 324            |346             |366            |
       |225            | 325            |347             |367            |
       |226            | 326            |350             |370            |
       |227            | 327            |351             |371            |
       |230            | 330            |352             |372            |
       |231            | 331            |353             |373            |
       |232            | 332            |354             |374            |
       |233            | 333            |355             |375            |
       |234            | 334            |356             |376            |
       |235            | 335            |357             |377            |
       |236            | 336            |360             |250            |
       |237            | 337            |361             |270            |
       |240            | 340            |362-376         |210            |
       |241            | 341            |                |               |
       +---------------+----------------+----------------+---------------+

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

       +-----------------------------------------------------------------+
       |               |     Conversions|Performed       |               |
       | PC Cyrillic   | Mac Cyrillic   | PC Cyrillic    | Mac Cyrillic  |
       |24             | 4              |341             |361            |
       |240            | 340            |342             |362            |
       |241            | 341            |343             |363            |
       |242            | 342            |344             |364            |
       |243            | 343            |345             |365            |
       |244            | 344            |346             |366            |
       |245            | 345            |347             |367            |
       |246            | 346            |350             |370            |
       |247            | 347            |351             |371            |
       |250            | 350            |352             |372            |
       |251            | 351            |353             |373            |
       |252            | 352            |354             |374            |
       |253            | 353            |355             |375            |
       |254            | 354            |356             |376            |
       |255            | 355            |357             |337            |
       |256            | 356            |360             |335            |
       |257            | 357            |361             |336            |
       |260-337        | 40             |362-376         |40             |
       |340            | 360            |                |               |
       +---------------+----------------+----------------+---------------+

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_pc_cyr(5)
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