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Full Discussion: awk and POSIX character class
Top Forums Shell Programming and Scripting awk and POSIX character class Post 302459368 by anthalamus on Monday 4th of October 2010 01:22:42 PM
Old 10-04-2010
thanks guys,
here's the revised version:

Code:
echo "./comparecdna.summary" | awk '/^[.][/]compare[[:alnum:]]+[.]summary$/' # returns: ./comparecdna.summary
echo "./compare_cdna.summary" | awk '/^[.][/]compare_[[:alnum:]]+[.]summary$/' # returns: ./compare_cdna.summary
echo "./compare_cdna_peptide.summary" | awk '/^[.][/]compare_[_[:alnum:]]+[.]summary$/' # returns: ./compare_cdna_peptide.summary
[:word:] is non-standard POSIX apparently

alister, the "/" seems not need be escaped here, maybe because it's by itself within the []?

pravin27, doesn't "[[:alpha:]].+" means "a letter followed by any characters once or more" ?
 

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LEARN ABOUT ULTRIX

mu-view

MU-VIEW(1)                                                    General Commands Manual                                                   MU-VIEW(1)

NAME

       mu_view - display an e-mail message file

SYNOPSIS

       mu view [options] <file> [<files>]

DESCRIPTION

       view  is the mu sub-command for displaying an e-mail message file. It works on message files and does not require the message to be indexed
       in the database.

       The command shows some common headers (From:, To:, Cc:, Bcc:, Subject: and Date:), the list of attachments and the plain-text body  of  the
       message (if any).

OPTIONS

       --summary
              instead of displaying the full message, output a summary based upon the first lines of the message.

       --summary-len=<number>
              Number of lines to use for the summary. Default: 5.

              --terminate  terminate  messaages  with  a  f  (form-feed) characters when displaying them. This is useful when you want to further
              process them.

BUGS

       Please report bugs if you find them: http://code.google.com/p/mu0/issues/list

AUTHOR

       Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>

SEE ALSO

       mu(1) mu-index(1)

User Manuals                                                        April 2012                                                          MU-VIEW(1)
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