hi
one perl issue i have xml file with 2 values and one condition b.w them
<rule>
<val1>12</val1>
<cond>and</cond>
<val2>13</val2>
</rule>
i read these values in hash in perl code
$one{val1} = 12
$one{cond} = and
$one{val2} = 13
now i want to form... (3 Replies)
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
`cat 0 >... (2 Replies)
Hi,
I got this script from the web, this generates an LDAP report in CSV format.
#!/usr/bin/perl
#
# Copyright (c) 2004
# Ali Onur Cinar &060;cinar&064;zdo.com&062;
#
# License:
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for... (23 Replies)
Hello. I've been writing some code in Perl to read in strings from html files and have been having issues. In the html file, each "paragraph" is a certain file on the website. I need to find every one of the files that is a certain type, in this case, having green color....therefore... (7 Replies)
Hi Everyone,
i have a string 00:44:40
so:
$tmp=~ s/://gi;
$tmp=~s/({2})({2})({2})/$1*3600+$2*60+$3/e;
the output is 2680.
Any way to combine this two lines into a single line?
Thanks (4 Replies)
Hi Team,
the Following program execute with out error but the out is not save with create2.txt. kindly help me!!!
print "Enter your Number \n";
my $name = <STDIN>;
if ($name =="*91111*")
{
@dirlist1 = `wc -l $name > create2.txt`;
}
else {print "do not match";} (3 Replies)
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
Hi All,
I have a perl script which I am using in Windows environment. There is one more file called "functions.txt" which is having all the functions defined to used in my perl script. And the path for this function file is defined in my perl script. Howeever sometimes I am getting below error... (4 Replies)
Hi All,
I am using the below script which has awk command, but it is not returing the expected result. can some pls help me to correct the command.
The below script sample.ksh should give the result if the value of last 4 digits in the variable NM matches with the variable value DAT. The... (7 Replies)
Input : day :15 and count -100
printf ("%6.6ld %10.10s %s\n",day,count)
any idea what would be the format it will be. (3 Replies)
Discussion started by: ramkumar15
3 Replies
LEARN ABOUT CENTOS
env
Env(3) User Contributed Perl Documentation Env(3)NAME
Env - perl module that imports environment variables as scalars or arrays
SYNOPSIS
use Env;
use Env qw(PATH HOME TERM);
use Env qw($SHELL @LD_LIBRARY_PATH);
DESCRIPTION
Perl maintains environment variables in a special hash named %ENV. For when this access method is inconvenient, the Perl module "Env"
allows environment variables to be treated as scalar or array variables.
The "Env::import()" function ties environment variables with suitable names to global Perl variables with the same names. By default it
ties all existing environment variables ("keys %ENV") to scalars. If the "import" function receives arguments, it takes them to be a list
of variables to tie; it's okay if they don't yet exist. The scalar type prefix '$' is inferred for any element of this list not prefixed by
'$' or '@'. Arrays are implemented in terms of "split" and "join", using $Config::Config{path_sep} as the delimiter.
After an environment variable is tied, merely use it like a normal variable. You may access its value
@path = split(/:/, $PATH);
print join("
", @LD_LIBRARY_PATH), "
";
or modify it
$PATH .= ":.";
push @LD_LIBRARY_PATH, $dir;
however you'd like. Bear in mind, however, that each access to a tied array variable requires splitting the environment variable's string
anew.
The code:
use Env qw(@PATH);
push @PATH, '.';
is equivalent to:
use Env qw(PATH);
$PATH .= ":.";
except that if $ENV{PATH} started out empty, the second approach leaves it with the (odd) value "":."", but the first approach leaves it
with ""."".
To remove a tied environment variable from the environment, assign it the undefined value
undef $PATH;
undef @LD_LIBRARY_PATH;
LIMITATIONS
On VMS systems, arrays tied to environment variables are read-only. Attempting to change anything will cause a warning.
AUTHOR
Chip Salzenberg <chip@fin.uucp> and Gregor N. Purdy <gregor@focusresearch.com>
perl v5.16.3 2013-03-02 Env(3)