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Top Forums Shell Programming and Scripting Deleting all lines containing numbers Post 302749141 by dunryc on Thursday 27th of December 2012 03:36:10 PM
Old 12-27-2012
Deleting all lines containing numbers

Hi guys

I have a text file in the following format

Quote:
1410054
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec diam dui,
congue sed tristique eget, pulvinar in enim. Nam tortor odio, rhoncus
sit amet suscipit eget, fringilla non purus. Donec non condimentum neque.
Praesent adipiscing nibh at mauris aliquam non fermentum dolor adipiscing.
Ut dolor mauris, condimentum in dapibus non, convallis vitae quam. Aenean
tincidunt justo at magna congue condimentum. Vestibulum lacus nisl, portt

1410187
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec diam dui,
congue sed tristique eget, pulvinar in enim. Nam tortor odio, rhoncus
sit amet suscipit eget, fringilla non purus. Donec non condimentum neque.
Praesent adipiscing nibh at mauris aliquam non fermentum dolor adipiscing.
Ut dolor mauris, condimentum in dapibus non, convallis vitae quam. Aenean
tincidunt justo at magna congue condimentum. Vestibulum lacus nisl, portt
what i would like ot do is iterate through the file deleting the lines containing only numbers. I have googled this and have been unable to find any help ( maybe its my search terms)

so if any one an give me a heads up i would appreciate it

dunryc
 

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Iconv(3)						User Contributed Perl Documentation						  Iconv(3)

NAME
Text::Iconv - Perl interface to iconv() codeset conversion function SYNOPSIS
use Text::Iconv; $converter = Text::Iconv->new("fromcode", "tocode"); $converted = $converter->convert("Text to convert"); DESCRIPTION
The Text::Iconv module provides a Perl interface to the iconv() function as defined by the Single UNIX Specification. The convert() method converts the encoding of characters in the input string from the fromcode codeset to the tocode codeset, and returns the result. Settings of fromcode and tocode and their permitted combinations are implementation-dependent. Valid values are specified in the system documentation; the iconv(1) utility should also provide a -l option that lists all supported codesets. Utility methods Text::Iconv objects also provide the following methods: retval() returns the return value of the underlying iconv() function for the last conversion; according to the Single UNIX Specification, this value indicates "the number of non-identical conversions performed." Note, however, that iconv implementations vary widely in the interpretation of this specification. This method can be called after calling convert(), e.g.: $result = $converter->convert("lorem ipsum dolor sit amet"); $retval = $converter->retval; When called before the first call to convert(), or if an error occured during the conversion, retval() returns undef. get_attr(): This method is only available with GNU libiconv, otherwise it throws an exception. The get_attr() method allows you to query various attributes which influence the behavior of convert(). The currently supported attributes are trivialp, transliterate, and discard_ilseq, e.g.: $state = $converter->get_attr("transliterate"); See iconvctl(3) for details. To ensure portability to other iconv implementations you should first check for the availability of this method using eval {}, e.g.: eval { $conv->get_attr("trivialp") }; if ($@) { # get_attr() is not available } else { # get_attr() is available } This method should be considered experimental. set_attr(): This method is only available with GNU libiconv, otherwise it throws an exception. The set_attr() method allows you to set various attributes which influence the behavior of convert(). The currently supported attributes are transliterate and discard_ilseq, e.g.: $state = $converter->set_attr("transliterate"); See iconvctl(3) for details. To ensure portability to other iconv implementations you should first check for the availability of this method using eval {}, cf. the description of set_attr() above. This method should be considered experimental. ERRORS
If the conversion can't be initialized an exception is raised (using croak()). Handling of conversion errors Text::Iconv provides a class attribute raise_error and a corresponding class method for setting and getting its value. The handling of errors during conversion depends on the setting of this attribute. If raise_error is set to a true value, an exception is raised; otherwise, the convert() method only returns undef. By default raise_error is false. Example usage: Text::Iconv->raise_error(1); # Conversion errors raise exceptions Text::Iconv->raise_error(0); # Conversion errors return undef $a = Text::Iconv->raise_error(); # Get current setting Per-object handling of conversion errors As an experimental feature, Text::Iconv also provides an instance attribute raise_error and a corresponding method for setting and getting its value. If raise_error is undef, the class-wide settings apply. If raise_error is 1 or 0 (true or false), the object settings override the class-wide settings. Consult iconv(3) for details on errors that might occur. Conversion of undef Converting undef, e.g., $converted = $converter->convert(undef); always returns undef. This is not considered an error. NOTES
The supported codesets, their names, the supported conversions, and the quality of the conversions are all system-dependent. AUTHOR
Michael Piotrowski <mxp@dynalabs.de> SEE ALSO
iconv(1), iconv(3) perl v5.16.3 2007-10-17 Iconv(3)
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