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Top Forums Shell Programming and Scripting Find and replace blank in the last field Post 302473096 by GoldenFire on Friday 19th of November 2010 01:35:42 AM
Old 11-19-2010
Find and replace blank in the last field

Hi all,

I have a huge file and I need to get ride of the fields 6-11 and replace the blanks in field 5 with a missing value(99999).

Code:
159,93848,5354,343,67898,45,677,5443,434,5545,45
677,45545,3522,244,
554,54344,3342,456,
344,43443,2344,444,23477
234,24446,4545,344,34576,65,424,3332,434,4324,34
546,78432,2345,566,
545,45666,8453,344,34455
434,34432,4244,298,

I'd like to have this
Code:
159,93848,5354,343,67898
677,45545,3522,244,99999
554,54344,3342,456,99999
344,43443,2344,444,23477
234,24446,4545,344,34576
546,78432,2345,566,99999
545,45666,8453,344,34455
434,34432,4244,298,99999

For the first part, I'm using the following code. I know it's not the best code for doing this, but it just does what I need.
Code:
 awk -F\,  '{print $1,$2,$3,$4,$5}'  input

Now, the blanks are in the last field and I am not able to replace them with missing values using sed. I do appreciate your help on this.
Code:
999 93848 5354 343 67898
677 45545 3522 244
554 54344 3342 456
344 43443 2344 444 23477
234 24446 4545 344 34576
546 78432 2345 566
545 45666 8453 344 34455
434 34432 4244 298

 

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replace(1)							  MySQL database							replace(1)

NAME
replace - A utility program that is used by msql2mysql, but that has more general applicability as well. replace changes strings in place in files or on the standard input. Uses a finite state machine to match longer strings first. Can be used to swap strings. USAGE
replace [-?svIV] from to from to ... -- [files] or replace [-?svIV] from to from to ... < fromfile > tofile SYNOPSIS
replace [-?|-I] [-s] [-v] DESCRIPTION
replace -?|-I info -s silent -v verbose EXTRA INFO
Special characters in from string: ^ Match start of line. $ Match end of line.  Match space-character, start of line or end of line. For a end  the next replace starts locking at the end space-character. A  alone in a string matches only a space-character. EXAMPLE
this command swaps a and b in the given files: shell> replace a b b a -- file1 file2 ... SEE ALSO
isamchk(1), isamlog(1), mysql(1), mysqlaccess(1), mysqladmin(1), mysqld(1), mysqld_multi(1), mysqld_safe(1), mysqldump(1), mysql_fix_privi- lege_tables(1), mysqlshow(1), mysql_zap(1), perror(1), For more information please refer to the MySQL reference manual, which may already be installed locally and which is also available online at http://www.mysql.com/doc/en/ BUGS
Please refer to http://bugs.mysql.com/ to report bugs. AUTHOR
Ver 1.0, distribution 4.0.24 Michael (Monty) Widenius (monty@mysql.com), MySQL AB (http://www.mysql.com/). This software comes with no warranty. Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mercur- media.com) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+------------------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+------------------------------------+ |Availability | SUNWmysqlr, SUNWmysqlu, SUNWmysqlt | +--------------------+------------------------------------+ |Interface Stability | External | +--------------------+------------------------------------+ NOTES
Source for mysql is available on http://opensolaris.org. MySQL 4.0 19 December 2000 replace(1)
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