Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Perl IO vs GLOB symbols

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Perl IO vs GLOB symbols
# 1  
Old 07-03-2008
Error Perl IO vs GLOB symbols
Hi,

Can someone please clarify how we are able to use both IO and GLOB symbols of a package variable interchangeably?

Please consider the following code:
Code:
open(FH,"myfile") || die "Unable to open file myfile:$@";
my $glob_var = *main::FH{GLOB};
my $io_var = *main::FH{IO};
print $glob_var "From glob\n";
print $io_var "From IO\n";
close FH;

Now 'myfile' contains,
Code:
From glob
From IO

Thanks,
Srini
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Issue with user input including * (glob) and sed

Hello All, I have created a script that searches for different things and "sanitizes" the findings from files. Currently the user is required to put in a hostname (server.serverfarm.abc) one at a time to replace. I would like the user be able to use *.*.abc in grep and then pipe into sed to... (1 Reply)
Discussion started by: jvezinat
1 Replies

2. Shell Programming and Scripting

Use ./*glob*

I used this site to check a script. ShellCheck - shell script analysis tool Line 57: zip -u -q Desktop_Items.zip *.desktop ^-- SC2035: Use ./*glob* or -- *glob* so names with dashes won't become options. I do not understand what is wrong with my zip... (6 Replies)
Discussion started by: drew77
6 Replies

3. Shell Programming and Scripting

Using glob() in python script in Linux

Hi I need some suggestion on glob function. I am trying to write a python program to grep some specific files in a particular directory. In the directory i have some files like below abc.log abc.pid abc.tar gadd.tar gat.log gat.tar in this directory i need to grep onlu my hostname files,... (1 Reply)
Discussion started by: kumar85shiv
1 Replies

4. Shell Programming and Scripting

Python - glob () - How to grep same files with different extension files

Hi I Have a directory and i have some files below abc.txt abc.gif gtee.txt ghod.pid umni.log unmi.tar How can use glob function to grep abc files , i have created a variable "text" and i assigned value as "abc", please suggest me how can we use glob.glob( ) to get the output as below... (2 Replies)
Discussion started by: kumar85shiv
2 Replies

5. Shell Programming and Scripting

Need to extract only decimal numbers for a glob of text

If you have a look at this thread, you'll see that users have been posting the output a script which are numbers that range from 2 to 5 decimal places. If I dump this entire thread to txt file, how can I: 1) Delete everything except for numbers of the following formats (where 'x' is a digit and... (5 Replies)
Discussion started by: graysky
5 Replies

6. Shell Programming and Scripting

glob not matching all files in perl

I encountered a weird issue with globbing in perl not returning all files, while I was testing out a script for recursive dir-processing on my Synology NAS. Basically it didn't show (/match?) all the files in a specific directory. If I move the file to a different directory or even rename it, it... (2 Replies)
Discussion started by: odyssey
2 Replies

7. UNIX for Dummies Questions & Answers

Help with understanding the symbols '~#' and '~$'

I noticed that sometimes there is "~#" or "~$" in the terminal. What is that? I can't make any research in google because I don't know what are they called. I even tried reading pdf's or books but unfortunately, I wasn't lucky to find out. Maybe I was not persistent enough but I am really... (3 Replies)
Discussion started by: chams
3 Replies

8. Shell Programming and Scripting

Perl: How to Print symbols like " and ;

Hi, How do I print a line with symbols in a file? Exp: If I want to print line: Hi "Lisa;John" Command: print FILE "Hi "Lisa;John""; - will give me error Bareword found where operator expected... Can someone advise how can I print any line consiting symbols like example above. Thanks... (3 Replies)
Discussion started by: SSGKT
3 Replies

9. Programming

cc -- Unsatisfied symbols -- on HP-UX 10.2

Greetings, I am slowly learning a few things but am far from being an expert. I am at the point now that I would like to be able write some ANSI C code on HP-UX 10.2. Just a hobbie... I am just using cc, which came with the HP-UX 10.2 ... I don't have the manuals for the development... (7 Replies)
Discussion started by: Dirk_
7 Replies

10. Shell Programming and Scripting

redirecting symbols

Can anyone please tell me what the following do 1. < 2. << Thanks Calypso (1 Reply)
Discussion started by: Calypso
1 Replies
Login or Register to Ask a Question

LEARN ABOUT DEBIAN

check-symbols

CHECK-SYMBOLS(1)					      General Commands Manual						  CHECK-SYMBOLS(1)

NAME

       check-symbols - verify symbols exported by a new library version

SYNOPSIS

       check-symbols <source-package> [DEBDIR]

DESCRIPTION

       To  verify the symbols exported by a new library version, run check-symbols with the name of the source package as argument.  check-symbols
       will first determine the symbols exported by the existing and installed library version, then install the new library and compare the  sym-
       bols  exported  by the new library version with the symbols exported by the old version.  For each of the symbols found, check-symbols will
       list if the symbol is new, unchanged or has been removed in the new library version.

       In case the source package contains multiple binary library packages, all library files in each of the binary packages will be verified.

       check-symbols uses nm -D to determine the exported symbols of the libraries.

       If no value is given for DEBDIR, the script will assume the new library deb files are stored in /var/cache/pbuilder/result.

EXAMPLES

       check-symbols telepathy-glib .

       This will:

	 o Use nm -D to determine the exported symbols of the old,
	   installed versions of the libraries provided by telepathy-glib.

	 o Install the binary libraries provided by the new version of
	   telepathy-glib.

	 o Compare the output of nm -D of the new libraries with the
	   output of the old version.

	 o List the result in diff format.

BUGS

       Please report bugs on:
       https://bugs.launchpad.net/ubuntu/+source/ubuntu-dev-tools/

SEE ALSO

       nm(1)

AUTHOR

       check-symbols was written by Daniel Holbach <daniel.holbach@ubuntu.com> and this manpage by Albert Damen <albrt@gmx.net>. Both are licensed
       under the GNU General Public License, version 2.

ubuntu-dev-tools						 December 9, 2007						  CHECK-SYMBOLS(1)