Good Morning Esteemed Bretheren,
I have a question on checking to see if I have already opened a file handle, and if so just go ahead and write to it, don't try to re-create it.
I have a dataset that looks like:
12/01/2007 23:54:52;S;353958.admin2;user= ....
12/14/2007 23:54:52;S;354218.admin2;user= ....
I want to open files based on the date, write that line to that file, and not open unnecessary files for dates that do not exist. ie..
for ( 1...31) {
open(FH$_, ">200712$_"), or die "Could not open $date $!\n";
}
I also don't want to be opening and closing file handles for every line.
Is it necessary to explicitly close all file handles as well?
Thanks in advance for your help and wisdom,
agent_smith
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.