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Full Discussion: Perl Grep Error - Possible Syntax?
Top Forums Shell Programming and Scripting Perl Grep Error - Possible Syntax? Post 302403964 by adelsin on Monday 15th of March 2010 07:36:37 AM
Old 03-15-2010
Perl Grep Error - Possible Syntax?
Alrighty, I'm trying to get a perl script going to search through a bunch of files for me and compile it to a single location. I am currently having troubles on just getting the grep to work.

Here is what I currently have:
Code:
#!/usr/bin/perl
open (LOG, "errors.txt") or die
 ("Unable to open error.txt");
@errors=<LOG>;
close(LOG);
$errors2 = grep Error,@errors;
foreach ($errors2)
{
chomp($_);
print "$_";
print "\n";
}

Here is the current output:
Code:
$ ./perl.sh
7
$

Here is the contents of errors.txt
Code:
$ more errors.txt
Error1
Error2
Error3
Makeshift Error
Makeshift
Pluto
jerror

For some reason it's doing a line count. Which is my next thing I wanted to do with it. I want to line count the results to see to even write them, or just skip over writing that section of my perl script.

I'm not too sure if I'm making much sense right now, but I'm just trying re-relearn perl. More of a brush up.

I've tried:
Code:
 
open (LOG, "errors.txt") or die
 ("Unable to open error.txt");
@errors=<LOG>;
close(LOG);
$errors2 = `grep Error errors.txt`;
foreach ($errors2)
{
chomp($_);
print "$_";
print "\n";
}

Which works fine as well. Then when I try to line count $errors2, it wants to line count the file Error1, Error2, etc.

But when I try to
Code:
$errors2 = `grep Error @errors`;

it tries to grep for the word Error in file Error1,Error2,etc. So that doesn't work either.


Any chance another set of eyes could see what I am doing wrong? Thank you for your time. I greatly appriciate it.
 

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LEARN ABOUT MINIX

txt2pdbdoc

txt2pdbdoc(1)						      General Commands Manual						     txt2pdbdoc(1)

NAME

       txt2pdbdoc - Text to Doc file converter for Palm Pilots

SYNOPSIS

       txt2pdbdoc [-b] [-c] [-v] document-name file.txt file.pdb
       txt2pdbdoc -d [-D] [-v] file.pdb [ file.txt ]
       txt2pdbdoc -V

DESCRIPTION

       txt2pdbdoc  converts  a plain text file to a Doc(4) file in PDB (Pilot Database) format used by all models of the Palm Pilot.  (It can also
       convert a Doc file to plain text.)  Resultant PDB files can be downloaded directly to a Pilot during a HotSync.

       The document-name is used in the Document List view of a Doc reader application on the Pilot.

OPTIONS

       -b   Ordinarily, characters with an ASCII code less than 9 are removed and both carriage-returns and form-feeds are converted to  newlines.
	    This option suppresses that behavior.

       -c   Ordinarily, text is compressed.  This option suppresses compression.

       -d   Decode the given Doc file to text either to a file or to standard output if no file is specified.

       -D   Do	not check the file type/creator of the file to decode.	This option should be specified only if you know for sure that the file is
	    in fact some sort of Doc file.  Attempting to decode non-Doc files will result in undefined behavior and quite possibly crash.

       -v   Verbose mode.  For encoding, print progress and compression statistics per 4K of text to standard error as well as overall	statistics
	    when completed; for decoding, print progress in a ``countdown'' style.

       -V   Print the version number of txt2pdbdoc to standard output and exit.

EXAMPLE

       To convert a text file to Doc file:

	    txt2pdbdoc 'Through the Looking Glass' alice.txt alice.pdb

EXIT STATUS

       Exits with one of the values given below:

	    0	 Success.
	    1	 Error in command-line options or use.
	    2	 Unable to open source file.
	    3	 Unable to open destination file.
	    4	 Unable to read file.
	    5	 Unable to write file.
	    6	 File is not a Doc file.
	    7	 Doc file uses unknown compression type.

CAVEATS

       1.  Document  names  are  limited  to  31 characters in PDB format.  Longer names are truncated but have the 29-31st characters replaced by
	   ``...'' to indicate truncation.

       2.  The command isn't called ``txt2doc'' to avoid confusion about possibly having anything to do with Microsoft Word documents that use the
	   .doc extension.

SEE ALSO

       html2pdbtxt(1), pdbtxt2html(1), doc(4), pdb(4)

AUTHOR

       Paul J. Lucas <pauljlucas@mac.com>

txt2pdbdoc							 January 21, 2005						     txt2pdbdoc(1)
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