compare two text files using linq?
- by bala3569
I have 4 text files in one folder and a pattern.txt to compare these text files..In pattern.txt i have
insert
update
delete
drop
I need to compare this text file with those four text files and if these patterns matches any line in that text files i have to write those lines in another log file...i had read those files using linq..i need to compare those files and write in a text file with line number..here is my code
var foldercontent = Directory.GetFiles(pathA)
.Select(filename => File.ReadAllText(filename))
.Aggregate(new StringBuilder(),
(sb, s) => sb.Append(s).Append(Environment.NewLine),
sb => sb.ToString());
var pattern = File.ReadAllLines(pathB).Aggregate(new StringBuilder(),
(sb, s) => sb.Append(s).Append(Environment.NewLine),
sb => sb.ToString());
using (var dest = File.AppendText(Path.Combine(_logFolderPath, "log.txt")))
{
//dest.WriteLine("LineNo : " + counter.ToString() + " : " + "" + line);
}
EDIT
I have already used c# to compare two text files but i need this in linq
while ((line = file.ReadLine()) != null)
{
if (line.IndexOf(line2, StringComparison.CurrentCultureIgnoreCase) != -1)
{
dest.WriteLine("LineNo : " + counter.ToString() + " : " + " " + line.TrimStart());
}
counter++;
}
file.BaseStream.Seek(0, SeekOrigin.Begin);
counter = 1;
