Wednesday, 18 May 2016

PERL example for opening EXCEL sheet using WIN32:OLE

#!/usr/bin/perl
# This PERL file will open one EXCEL, create 4 WORK Sheets, in first
# WORKSheet make table with borders and few values

use Win32::OLE;
use Win32::OLE::Const 'Microsoft Excel';
$Win32::OLE::Warn = 3;                                # die on errors...
my $Excelfile = Win32::OLE->GetActiveObject('Excel.Application')
                || Win32::OLE->new('Excel.Application', 'Quit'); 
$Excelfile->{DisplayAlerts} = 0;
$Excelfile->{ScreenUpdating} = 0;

$workbook = $Excelfile->Workbooks->Add();

for ($j=1;$j<=4;$j++)
{   
    $worksheet = $workbook->WorkSheets->Add({after => $workbook->WorkSheets($workbook->WorkSheets->{COUNT})});
    $worksheet->{Name}="Summary_".$j;
}
my $cur_dir = `cd`;
chomp($cur_dir);
$TargetFile = $cur_dir."\\Excel_Test_File.xls";
print "Result file name is $TargetFile \n";


#Select first sheet and write values

$worksheet=$workbook->WorkSheets("Summary_1");

$current_row = 3;
$start_row_forborder=$current_row;
$current_col = 2;

#for ($k=0;$k<3;$k++)
#{
#
#    $worksheet->Cells($current_row,$current_col)->Font->{FontStyle}="Bold";
#    $worksheet->Cells($current_row,$current_col)->Interior->{ColorIndex} =24;
#    $worksheet->Columns($current_col)->{ColumnWidth}=20;
#    $current_col++;
#
#}

### Another way of formatting if we are using fixed columns

$worksheet->Range("B$current_row:D$current_row")->Font->{FontStyle}="Bold";
$worksheet->Range("B$current_row:D$current_row")->Interior->{ColorIndex} =24;
$worksheet ->Range("B$current_row:D$current_row") ->{ColumnWidth} = 20;

#$current_col=$current_col-3;
$worksheet->Cells($current_row, $current_col)->{'Value'} = "S.No";
$worksheet->Cells($current_row, $current_col+1)->{'Value'} = "Name";
$worksheet->Cells($current_row, $current_col+2)->{'Value'} = "Department";
$worksheet->Cells($current_row, $current_col+2)->{'Value'} = "Work_type";

$current_row++;

for ($i=1;$i<=10 ;$i++) {

    $worksheet->Cells($current_row, $current_col)->{'Value'} =$i;
    $worksheet->Cells($current_row, $current_col+1)->{'Value'} = "Name_".$i;
    $worksheet->Cells($current_row, $current_col+2)->{'Value'} = "Colour";
    $current_row++;
}

$last_row=$current_row-1;
    #### Keep border for excel if it is last line.

    $worksheet->Range("B$start_row_forborder:D$last_row")->{HorizontalAlignment} = xlHAlignRight;
    $worksheet->Range("B$start_row_forborder:D$last_row")->{Borders}->{Weight} = xlThin;
   


#Deleting Default SHEETS
$worksheet = $workbook->Worksheets("Sheet1")->Delete();
$worksheet = $workbook->Worksheets("Sheet2")->Delete();
$worksheet = $workbook->Worksheets("Sheet3")->Delete();

$workbook->Worksheets(1)->Activate;


$workbook->SaveAs("$TargetFile");
$workbook->Close;


Monday, 9 May 2016

Syntax error in /sysroot/etc/selinux/config : 6 : syntax error ";" unexpected failed to boot sleeping forever.

We got this issue in one of the Linux PC, by mistake in the config file of SELinux instead of using # for commenting ";" was used. After reboot the PC won't boot with below messages:

 

===============================
/sysroot/etc/selinux/config : 10 : syntex error: ";" unexpected
Signal caught!
Boot has failed, sleeping forever.
===============================

We can access GRUB command line but Single mode bootup doesnt work. the only way to recover was to use Live CD, go to rescue mode. Give below command in shell:

chroot /mnt/sysimage
cd etc/selinux
vim config

Modify the statement and save and reboot.

And it worked....

Keep Working , Keep Trying !!


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