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Top Forums Shell Programming and Scripting How to extract portion of a string? Post 302618761 by superHonda123 on Wednesday 4th of April 2012 11:30:55 AM
Old 04-04-2012
Question How to extract portion of a string?

Hi Gurus,

Would like to seek some help on how to extract a portion of string from log's output as shown below.

Sample of raw data:
Code:
piece handle=/test123/disk_dump/test123/df0_cntrl_PCPFCI20120404_68498 tag=TAG20120404T180035 comment=NONE
piece handle=/test123/disk_dump/test123/df0_arc_PCPFCI20120404_68499 tag=TAG20120404T180045 comment=NONE
piece handle=/test123/disk_dump/test123/df0_arc_PCPFCI20120404_68500 tag=TAG20120404T180045 comment=NONE
piece handle=/test123/disk_dump/test123/df0_arc_PCPFCI20120404_68501 tag=TAG20120404T180045 comment=NONE
piece handle=/test123/disk_dump/test123/df0_spfile_PCPFCI20120404_68518 tag=TAG20120404T192714 comment=NONE

Expected output:
Code:
df0_cntrl_PCPFCI20120404_68498
df0_arc_PCPFCI20120404_68499
df0_arc_PCPFCI20120404_68500 
df0_arc_PCPFCI20120404_68501 
df0_spfile_PCPFCI20120404_68518

Is there a magic 1 line script or command that could perform this task?

Appreciate for any of your help / advise.

Thanks a lot.


- Peter

Last edited by Scrutinizer; 04-04-2012 at 03:08 PM.. Reason: Code tags
 

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TAGGREPPER(1)							   User Commands						     TAGGREPPER(1)

NAME
taggrepper - search and match tags of media file for regular expressions SYNOPSIS
taggrepper [--tag-label regexp]... [--display-taglabel]... [FILE/DIRECTORY]... DESCRIPTION
Perform a regular expression search on the tags of specified media files. Mandatory arguments to long options are mandatory for short options too. All regular expressions are Perl Compatible Regular expressions supported by the PCRE libraries. Note that all matches are ANDed, meaning that for a successful match, matches against all tags must occur. Support exists for MP3 files, and, if compiled in, for Ogg Vorbis and FLAC files as well. -t, --title=REGEXP Match the title tag against REGEXP -a, --artist=REGEXP Match the artist tag against REGEXP -l, --album=REGEXP Match the album, tag against REGEXP -y, --year=REGEXP Match the year tag against REGEXP -g, --genre=REGEXP Match the genre tag against REGEXP -c, --comment=REGEXP Match the comment tag against REGEXP --track=REGEXP Match the track tag against REGEXP -c, --composer=REGEXP Match the composer tag against REGEXP -o, --orig-artist=REGEXP Match the original artist tag against REGEXP -c, --copyright=REGEXP Match the copyright tag against REGEXP -u, --url=REGEXP Match the URL tag against REGEXP -e, --encoded-by=REGEXP Match the encoded-by tag against REGEXP --any-tag=REGEXP Match the encoded-by tag against REGEXP. Using this option makes every one of the above options to be ignored --display-title display title tag of matching files --display-artist display artist tag of matching files --display-album display album tag of matching files --display-year display year tag of matching files --display-genre display genre tag of matching files --display-comment display comment tag of matching files --display-track display track tag of matching files --display-composer display composer tag of matching files --display-orig-artist display orig-artist tag of matching files --display-copyright display copyright tag of matching files --display-url display url tag of matching files --display-encoded-by display encoded-by tag of matching files -0, --print0, Use null character as delimiter. This option can be used with -0 option of xargs. -r, --recursive Search directories recursively -v, --version Display version and exit -h, --help Display this help message All regular expressions are PCRE regular expressions. Refer to the PCRE documentation for details. Report comments and bugs to a.kumar@alumni.iitm.ac.in COPYING
Copyright (C) Kumar Appaiah License: BSD License (see COPYING file in the distribution tarball for details) This program is free software; you can distribute it under the terms of the BSD License. See the file COPYING in the tarball, or /usr/share/common-licenses/BSD on Debian-based systems. SEE ALSO
pcre(3) taggrepper 0.01 July 2009 TAGGREPPER(1)
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