Plase use the <c> tags next time (Markup in the Monastery), as follows:

#abc.pm ----- 
package abc; 

use strict; 
use File::Path 'mkpath'; 

# for mkdir 
#use warnings; 
use integer; 
use File::Basename; 
use File::Copy; 

# for move 
use IO::Zlib; 

# to read gzip input files 
use IO::File; 

# to read non gzip input files 
use Text::Trim; 
use Data::Types qw(is_int is_string); 
use Shell qw (cat); 
use Sys::Hostname; 
use Time::Local;
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This makes your code much more readable.