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Top Forums Shell Programming and Scripting Help with grep at specific field of a file Post 302464983 by ctsgnb on Thursday 21st of October 2010 11:17:41 AM
Old 10-21-2010
Maybe it's my english which is too bad ... i think i just don't understand the sentence in the same way than you:

when he wrote "Line 10", i thought it was a typo error and that we should read "char 10" instead (indeed, that was matching the sample he gave)

By the way, i read the bold line and he explicitly talk about 4 length, he never specified it could be larger .

Or am I missunderstanding something ?

I understood he wanted to count the number of BELL occurence appearing in field starting at char 10 and have a length of 4
(just as it appear in his example).
I didn't figure his problem was about having BELLLLLLLLLLLLL occurrence (if so, i suppose he would have put such an entry in the sample)

You are true that my code does not handle with BELLLLLLLLLLLLL : it count them as if it were a BELL one.
I just assumed that his input file was a file formatted the same way than the sample he gave.

Last edited by ctsgnb; 10-21-2010 at 12:36 PM..
 

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findfiles(1)						       PythonCard Developers						      findfiles(1)

NAME
findfiles - Utility to locate files containing specific content SYNOPSIS
findfiles [switches] DESCRIPTION
Very often when you are programming in any programming or scripting language, you want to find out how a particular function works or whether a particular property is settable, or any of a number of other questions. In many cases, you can find the answers to your questions by looking at the source code of the application or tool you're using. This is sometimes referred to as "code shopping," particularly when what you really hope to find is a method that does exactly what you want to do. The PythonCard findfiles tool is designed to support you in these efforts. Type in a string for which to search, tell findfiles the directories (yes, you can have more than one) in which to search for files con- taining that string, and send findfiles off to locate files with that specific content. Scroll through the list of files, each with a line reproducing part of the located line for each occurrence in the file, find the one you think is what you are looking for, and double-click the line. Voila! The PythonCard codeEditor tool opens and scrolls instantly to the line you've selected. SWITCHES
-p Show property editor -m Show message watcher -l Enable logging -s Show shell -m Show namespace -d Show debug menu REGULAR EXPRESSIONS
The findfiles utility uses classic Unix grep (regular expression) searches. The grep utility uses a technique called regular expression matching to locate information. In regular expressions, some characters have a special meaning. If you want to search for any of these special characters in the strings you supply in findfiles, you'll have to escape them by preceding them with a backward slash () character. While there are many such characters in regular expressions, the ones with which you will need to be most careful are: question mark (?), asterisk (*), addition/concatenation operator (+), pipe or vertical bar (|), caret (^) and dollar sign ($). To search for a dollar sign in the target directories, for example, put "$" into the search field. (Putting in a $ by itself will crash findfiles fairly reliably.) On a Debian system, you can see the manpages for grep(1) or regex(7) for more information on grep and regular expressions. NOTES
The findfiles utility also provides additional functionality that is not discussed in this manpage, because it is somewhat difficult to completely describe usage of a GUI program in a text-based manpage. For more detailed usage instructions or for more information on the PythonCard GUI framework in general, you should install the pythoncard-doc package and take a look at the various walk-throughs, tutorials and samples included with it. Once the pythoncard-doc package is installed, the documentation is installed to /usr/share/doc/pythoncard-doc, and is also available via Debian's doc-base infrastructure - find it in the Devel section using dwww(1), doc-central(1) or dhelp(1). If you would rather not install the pythoncard-doc package, you can find essentially the same information on the PythonCard website: http://pythoncard.sourceforge.net BUGS
Although it is considered to be stable, this is still development-level software. Please report bugs in this or any PythonCard component to the Debian Bug Tracking system using reportbug(1). AUTHOR
This manpage was written by Kenneth J. Pronovici <pronovic@debian.org>, for use by the Debian project. Content was based on previously- existing PythonCard documentation in other forms. SEE ALSO
codeEditor(1), resourceEditor(1), PythonCard GUI Framework August 2003 findfiles(1)
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