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Full Discussion: Need help splitting huge single record file
Top Forums Shell Programming and Scripting Need help splitting huge single record file Post 302578855 by leolson on Friday 2nd of December 2011 02:30:21 PM
Old 12-02-2011
Question Need help splitting huge single record file
I was given a data file that I need to split into multiple lines/records based on a key word. The problem is that it is 2.5GB or bigger and everything I try in perl or sed causes a Segmentation fault. Can someone give me some other ideas.

The data is of the form:
Code:
RANDOMDATA*end*RANDOMDATA*end*RANDOMDATA*end*RANDOMDATA*end*



with no LF's to break it up.
I have tried things such as:
Code:
sed "s/\*end\*/\n/g" test1.text > test2.txt
cat test1.text | sed "s/\*end\*/\n/g" > test2.txt
perl -p -e "s/\*end\*/\n/g" test1.text > test2.txt


which all fail with:
Code:
Segmentation fault



Any ideas?

Thanks in advance!
Last edited by radoulov; 12-02-2011 at 04:41 PM.. Reason: Code tags!
 

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LEARN ABOUT DEBIAN

british-english-huge

british-english-huge(5) 					   Users' Manual					   british-english-huge(5)

NAME

       british-english-huge - a list of English words

DESCRIPTION

       /usr/share/dict/british-english-huge is an ASCII file which contains an alphabetic list of words, one per line.

FILES

       There  may  be  any  number  of	word lists in /usr/share/dict/.  /etc/dictionaries-common/words is a symbolic link to the currently-chosen
       /usr/share/dict/<language> file.  /usr/share/dict/words is a symbolic link to /etc/dictionaries-common/words, and  is  the  name  by  which
       other  software should refer to the system word list.  See select-default-wordlist(8) for more information, and/or to change the currently-
       chosen word list.

       The directory /usr/share/dict can contain word lists for many languages, with name of the language in English, e.g., /usr/share/dict/french
       and  /usr/share/dict/danish  contain respectively lists of French and Danish words if they exist.  Such lists should be coded using the ISO
       8859-1 character set encoding.

SEE ALSO

       ispell(1), select-default-wordlist(8), and the Filesystem Hierarchy Standard.

HISTORY

       The words lists are not specific, and may be generated from any number of sources.

       The system word list used to be /usr/dict/words.  For compatibility, software should check that location if /usr/share/dict/words does  not
       exist.

AUTHOR

       Word  lists  are  collected and maintained by various authors.  The Debian English word lists are built from the SCOWL (Spell- Checker Ori-
       ented Word Lists) package, whose upstream editor is Kevin Atkinson <kevina@users.sourceforge.net>.

Debian								   16 June 2003 					   british-english-huge(5)
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