• Suliman (25/25) Feb 29 2016 I am trying to check relative path on Linux for exists.
• Alex Parrill (6/31) Feb 29 2016 ~ is expanded by your shell. It is not a relative path, and
• Edwin van Leeuwen (4/11) Feb 29 2016 D can expand tilde with expandTilde:

Suliman <evermind live.ru> writes:

I am trying to check relative path on Linux for exists.

import std.stdio;
import std.path;
import std.file;
import std.string;



string mypath = "~/Documents/imgs";

void main()
{
  if(!mypath.exists)
	{
		writeln(mypath, " do not exists");		
	}

  if(!mypath.exists)
	{
		writeln(mypath, " do not exists");		
	}

  if("/home/dima/Documents/imgs".exists)
	{
		writeln("/home/dima/Documents/imgs");
		writeln("Dir exists");
	}

}

~/Documents/imgs always return "do not exists". But full path: 
"/home/dima/Documents/imgs" is "Dir exists".

Why? It's same paths!

Alex Parrill <initrd.gz gmail.com> writes:

On Monday, 29 February 2016 at 14:50:51 UTC, Suliman wrote:
 I am trying to check relative path on Linux for exists.

 import std.stdio;
 import std.path;
 import std.file;
 import std.string;



 string mypath = "~/Documents/imgs";

 void main()
 {
  if(!mypath.exists)
 	{
 		writeln(mypath, " do not exists");		
 	}

  if(!mypath.exists)
 	{
 		writeln(mypath, " do not exists");		
 	}

  if("/home/dima/Documents/imgs".exists)
 	{
 		writeln("/home/dima/Documents/imgs");
 		writeln("Dir exists");
 	}

 }

 ~/Documents/imgs always return "do not exists". But full path: 
 "/home/dima/Documents/imgs" is "Dir exists".

 Why? It's same paths!

~ is expanded by your shell. It is not a relative path, and 
system calls do not recognize it (same with environmental 
variables).

See also 
http://stackoverflow.com/questions/3616595/why-mkdir-fails-to-work-with-tilde

Edwin van Leeuwen <edder tkwsping.nl> writes:

On Monday, 29 February 2016 at 14:58:46 UTC, Alex Parrill wrote:
 On Monday, 29 February 2016 at 14:50:51 UTC, Suliman wrote:
 I am trying to check relative path on Linux for exists.

 string mypath = "~/Documents/imgs";

 ~ is expanded by your shell. It is not a relative path, and 
 system calls do not recognize it (same with environmental 
 variables).

D can expand tilde with expandTilde:

import std.path : expandTilde;
string mypath = expandTilde("~/Documents/imgs");