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Full Discussion: Shift Question (Perl)
Top Forums Shell Programming and Scripting Shift Question (Perl) Post 302274143 by ifeatu on Tuesday 6th of January 2009 09:34:15 PM
Old 01-06-2009
Shift Question (Perl)
I am attempting to write a script that reads each line of a file into a separate array and does some work on it then puts it all back together and I think I need to use the 'shift()' command to read each line into its own array, but I need help nesting it into a while loop (while not eof)

So here is some of the raw data in the file:

Code:
Vallejo-1991-Jan-20-The_Bride-BLH
Vallejo-1991-Jan-20-The_Bride-BLH
Berkeley-1992-Jan-26-I_Corinth_14-BLH
berkeley-1992-Jan-26-I_Corinth_14-BLH
Union City-1991-July-14-Promises_covenent_of_circumcision-BLH
UC-1991-July-14-Promises_covenent_of_circumcision-BLH

I want the output to replace the Location (Vallejo, etc.) with a consistent syntax (Capital first letter and city spelled out; e.g. Union City, Vallejo, Berkeley, there are only these three locations) AND, more importantly I want to change the Month element into a number (e.g July - 07, Jan -01, unfortunately the abbreviations aren't always consistent, BUT the first three letters usually are (Jul, Jan, Aug, etc.)

So the output of the data above should be:

Vallejo-1991-01-20-The_Bride-BLH
Vallejo-1991-01-20-The_Bride-BLH
Berkeley-1992-01-26-I_Corinth_14-BLH
Berkeley-1992-01-26-I_Corinth_14-BLH
Union City-1991-07-14-Promises_covenent_of_circumcision-BLH
Union City-1991-07-14-Promises_covenent_of_circumcision-BLH

here is what I have so far:
Code:
# Open File containing raw data
open(FILE, "test2.txt") or die("unable to open file");

# read file into an array
@RawData = <FILE>;
close(FILE);
while (<>) {

#read in Folder name
@FileNames = shift(@RawData);

I know how to write the code to split the data into arrays BUT I dont know how to analyze and replace the data...
 

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LEARN ABOUT CENTOS

wildmat

WILDMAT(3)						     Library Functions Manual							WILDMAT(3)

NAME

       wildmat - perform shell-style wildcard matching

SYNOPSIS

       int
       wildmat(text, pattern)
	   char       *text;
	   char       *pattern;

DESCRIPTION

       Wildmat	is  part  of libinn (3).  Wildmat compares the text against the pattern and returns non-zero if the pattern matches the text.  The
       pattern is interpreted according to rules similar to shell filename wildcards, and not as a full regular expression such as  those  handled
       by the grep(1) family of programs or the regex(3) or regexp(3) set of routines.

       The pattern is interpreted as follows:

       x     Turns  off the special meaning of x and matches it directly; this is used mostly before a question mark or asterisk, and is not spe-
	      cial inside square brackets.

       ?      Matches any single character.

       *      Matches any sequence of zero or more characters.

       [x...y]
	      Matches any single character specified by the set x...y.	A minus sign may be used to indicate a	range  of  characters.	 That  is,
	      [0-5abc] is a shorthand for [012345abc].	More than one range may appear inside a character set; [0-9a-zA-Z._] matches almost all of
	      the legal characters for a host name.  The close bracket, ], may be used if it is the first character in the set.  The  minus  sign,
	      -, may be used if it is either the first or last character in the set.

       [^x...y]
	      This  matches any character not in the set x...y, which is interpreted as described above.  For example, [^]-] matches any character
	      other than a close bracket or minus sign.

HISTORY

       Written by Rich $alz <rsalz@uunet.uu.net> in 1986, and posted to Usenet several times since then,  most	notably  in  comp.sources.misc	in
       March, 1991.

       Lars Mathiesen <thorinn@diku.dk> enhanced the multi-asterisk failure mode in early 1991.

       Rich and Lars increased the efficiency of star patterns and reposted it to comp.sources.misc in April, 1991.

       Robert Elz <kre@munnari.oz.au> added minus sign and close bracket handling in June, 1991.

       This is revision 1.10, dated 1992/04/03.

SEE ALSO

       grep(1), regex(3), regexp(3).

																	WILDMAT(3)
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