Reading values in perl


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Reading values in perl
# 8  
Old 02-11-2010
Sorry, just making sure you're not a student trying to cheat.

Data:Smilieumper isn't doing the magic in my code, it just dumps a data structure (hence the name). The magic is happening in the map "loop", and it's acting on a whole file handle (it's basically a glorified foreach, but more powerful).

Quote:
Originally Posted by VGR
after opening it up like this, i count the number of lines in the array and then run two loops to pick out one line(record) at a time....
Huh? Is it just me, or does this seem unnecessarily complicated?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading and Comparing values of file

Hi gurus.. Am reading a file, counting number of lines and storing it in a variable. Then am passing that variable into If loop for comparision, if the number of lines are greater than 1000 it should split a file if not it should send the file name to archive folder.. but when i execute the... (4 Replies)
Discussion started by: azherkn3
4 Replies

2. Shell Programming and Scripting

Reading off values from a large file

Hi, I have a large output file (star.log), with many lines of the following type *** T vavg unburnt: 723.187 / burnt: 2662.000 What I would like to do is pick the values 723.187 and 2662.000 and What I've got so far is awk '/unburnt:.*burnt:/{Tu=$6;Tb=$NF}END{print Tu, Tb}'... (6 Replies)
Discussion started by: lost.identity
6 Replies

3. Shell Programming and Scripting

Perl :: reading values from Data Dumper reference in Perl

Hi all, I have written a perl code and stored the data into Data structure using Data::Dumper module. But not sure how to retreive the data from the Data::Dumper. Eg. Based on the key value( Here CRYPTO-6-IKMP_MODE_FAILURE I should be able to access the internal hash elements(keys) ... (1 Reply)
Discussion started by: scriptscript
1 Replies

4. Shell Programming and Scripting

Reading values from sql query

I have sql query in shell script. select distinct account_no from adj order by account_no; This query returns account number daily.Sometimes it may return 90 rows sometime it may return 1 row only and someday it may return 0 rows I am storing the output of this query in sql_output.txt. ... (5 Replies)
Discussion started by: rafa_fed2
5 Replies

5. Shell Programming and Scripting

Reading multiple values in while loop

I'm having trouble with a simple piece of code. IFS=, echo "1,2,3,4,5,6,7,8" | while read x y do echo "x=$x" echo "y=$y" done I'm hoping for x=1 y=2 x=3 y=4 . . . but I'm getting x=1 (3 Replies)
Discussion started by: sabbata
3 Replies

6. Shell Programming and Scripting

reading a script and summing some values

I need help reading and summing some values in a file that looks like the following. This is an Oracle trace file. Oracle has as utility to do this,but it doesn't work properly unless my sql statement is done. I want to read the file and sum up some values to let me know how the query/job is... (0 Replies)
Discussion started by: guessingo
0 Replies

7. Shell Programming and Scripting

Reading values from a file

Hi I have a file in the following format AFUE 0. AOXI 0. VFUE 100.0 VOXI 274.601 TFUE 298. TOXI 2229.544 TMAX 2400. What I want to do is write a bash script, that use either perl/awk or sed to read the number after VFUE and VOXI (which is 100.0 and... (1 Reply)
Discussion started by: lost.identity
1 Replies

8. UNIX and Linux Applications

Reading values from the command line

Hi I want to give the user the choice of whether or not they want to include a certain option when they run the script. This is my getops: while getopts " s: d: r f: e h " option do case $option in f ) dsxfile="$OPTARG";; d ) dbname="$OPTARG";; s ) dsn="$OPTARG";; r )... (0 Replies)
Discussion started by: ladyAnne
0 Replies

9. Shell Programming and Scripting

reading values into an array

I have this portion of a script and it works: base_config="A B C D E" for field in $base_config do var=`echo $field` ((i=$i+1)) done I get an array of var=A, var=B, and so on. What if I have this example with white space and want to put it into an array while... (1 Reply)
Discussion started by: djehresmann
1 Replies

10. UNIX for Dummies Questions & Answers

Reading from a file and assigning values

HI I have something like this in a file ABC = 1 DEF = 2 GHI = 3 JKL = 4 MNO = 5 QRS = 6 TUV = 7 I need to assign ABC to V_abc (that is to a variable) GHI to V_ghi (that is to another variable) TUV to say V_tuv ... (6 Replies)
Discussion started by: ssuresh1999
6 Replies
Login or Register to Ask a Question
fileutil::magic::cgen(n)					  file utilities					  fileutil::magic::cgen(n)

__________________________________________________________________________________________________________________________________________________

NAME
fileutil::magic::cgen - Generator core for compiler of magic(5) files SYNOPSIS
package require Tcl 8.4 package require fileutil::magic::cgen ?1.0? package require fileutil::magic::rt ?1.0? package require struct::tree package require struct::list ::fileutil::magic::cgen::2tree script ::fileutil::magic::cgen::treedump tree ::fileutil::magic::cgen::treegen tree node _________________________________________________________________ DESCRIPTION
This package provides the generator backend for a compiler of magic(5) files into recognizers based on the fileutil::magic::rt recognizer runtime package. For the compiler frontend using this generator see the package fileutil::magic::cfront. COMMANDS
::fileutil::magic::cgen::2tree script This command converts the recognizer specified by the script into a tree and returns the object command of that tree as its result. It uses the package struct::tree for the tree. The script is in the format specified by magic(5). ::fileutil::magic::cgen::treedump tree This command takes a tree as generated by ::fileutil::magic::cgen::2tree and returns a string encoding the tree for human consump- tion, to aid in debugging. ::fileutil::magic::cgen::treegen tree node This command takes a tree as generated by ::fileutil::magic::cgen::2tree and returns a Tcl script, the recognizer for the file types represented by the sub-tree rooted at the node. The generated script makes extensive use of the commands provided by the recognizer runtime package fileutil::magic::rt to perform its duties. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category fileutil :: magic of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. SEE ALSO
file(1), fileutil, magic(5) KEYWORDS
file recognition, file type, file utilities, mime, type CATEGORY
Programming tools fumagic 1.0 fileutil::magic::cgen(n)