delete_line_from_file

delete_line_from_file($file,$line,$timeout=COMMAND_TIME); - delete the specified line in the file, available from version 7.0.4

The function accepts parameters as input:

  • $file – path to the file to delete the line in. It can be either absolute or relative (relative to the script folder).
  • $line – the number of the line to delete in the file (starts with 0)
  • $timeout – the maximum time to perform this operation (in seconds), by default - 60 seconds, if the operation is not completed during this time, the script continues to run further.

    After testing, the function returns the result of its work to the script :
  • true – operation completed (boolean)
  • false – operation failed (boolean)

    PHP example: 

    <?php $xhe_host = "127.0.0.1:7016";
 
//connect the object to control the emulator, if not already connected
if(!isset($path))
   $path = "../../../Templates/xweb_human_emulator.php";
require($path);
 
//Start
echo "<hr> <font color = blue> textfile->".basename(__FILE__)."</font> <hr>";
 
//prepare files
$path = "test \ test_delete.txt";
$file_os->delete($path);
$file_os->copy("test \ test_dedupe.txt", $path);
 
//1
echo("1.Get the number of lines in the file:");
echo $textfile->get_lines_count($path)." n";
 
//2
echo("2.Remove line from file:");
echo $textfile->delete_line_from_file($path, 2)." n";
 
//3
echo("3.Get the number of lines in the file:");
echo $textfile->get_lines_count($path)." n";
 
//end
echo "<hr> <br>";
 
//Quit
$app->quit();
?>

    Python example: 

    # Additional paths
import sys
sys.path.insert(0, '../../../Templates PY/')
 
xhe_host = "127.0.0.1:7016"
from xweb_human_emulator import *
 
# Start
echo("<hr> <font color = blue> textfile.xxxxxxxxx </font> <hr>")
 
# prepare files
path = "test \ test_delete.txt";
file_os.delete(path);
file_os.copy("test \ test_dedupe.txt", path);
 
# 1
echo("1.Get the number of lines in the file:");
echo(textfile.get_lines_count(path), "
");
 
# 2
echo("2.Remove line from file:");
echo(textfile.delete_line_from_file(path, 2), "
");
 
# 3
echo("3.Get the number of lines in the file:");
echo(textfile.get_lines_count(path), "
");
 
# end
echo("<hr> <br>")
 
# Quit
app.quit()

    C# example: 

    #region using
 
using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Text;
using System.Threading;
 
using XHE;
using XHE.XHE_DOM;
using XHE.XHE_System;
using XHE.XHE_Window;
using XHE.XHE_Web;
 
#endregion
 
 class Program: XHEScript
 {
static void Main(string [] args)
{
//init XHE
server = "127.0.0.1:7016";
InitXHE();
 
//Start
echo("<hr> <font color = blue> textfile.get_all_external_inner_texts_and_hrefs </font> <hr>");
 
           //prepare files
            string path = "test \ test_delete.txt";
            file_os.delete(path);
            file_os.copy("test \ test_dedupe.txt", path);
 
           //1
            echo("1.Get the number of lines in the file:");
            echo(textfile.get_lines_count(path) + " n");
 
           //2
            echo("2.Remove line from file:");
            echo(textfile.delete_line_from_file(path, 2) + " n");
 
           //3
            echo("3.Get the number of lines in the file:");
            echo(textfile.get_lines_count(path) + " n");
 
//end
echo("<hr> <br>");
 
app.quit();
}
}

    Java Script example: 

    //connect the object to control the emulator, if not already connected
xhe_host = "127.0.0.1:7016";
echo = require("../../../Templates JS/xweb_human_emulator.js");
 
//Start
echo("<hr> <font color = blue> textfile.get_line_from_file </font> <hr>");
 
//prepare files
var path = "test \ test_delete.txt";
file_os.delete(path);
file_os.copy("test \ test_dedupe.txt", path);
 
//1
echo("1.Get the number of lines in the file:");
echo(textfile.get_lines_count(path) + " n");
 
//2
echo("2.Remove line from file:");
echo(textfile.delete_line_from_file(path, 2) + " n");
 
//3
echo("3.Get the number of lines in the file:");
echo(textfile.get_lines_count(path) + " n");
 
//end
echo("<hr> <br>");
 
//Quit
app.quit();