Ruby s File open gives No such file or directory - text txt Errno ENOENT error

Question

I installed Ruby 1 9 2 on my Win 7 machine  Created a simple analyzer rb file  It has this one line   File open  text txt   each   line  puts line    When I run the code  it gives me this error   analyzer rb 1 in  initialize   No such file or directory - text txt  Errno  ENOENT  from analyzer rb 1 in  open  from analyzer rb 1 in   lt main gt   Exit code  1   I don t get it  There is a text txt file in the same directory as the analyzer rb file  I also tried feeding the absolute path of the file  C  Ruby192 text txt  but no dice  What am I missing

User · Answer

Next to being in the wrong directory I just tripped about another variant:

I had a File.open(my_file).each {|line| puts line} exploding but there was something by that name in the directory I was working in (ls in the command line showed the name). I checked with a File.exists?(my_file) which strangely returned false. Explanation: my_file was a symlink which target didn't exist anymore! Since File.exists? will follow a symlink it will say false though the link is still there.

User · Answer

ENOENT means it s not there   Just update your code to   File open File dirname   FILE        text txt   each   line  puts line

User · Answer

Try using   Dir glob         To see what s in the directory  and therefore what directory it s looking at

User · Answer

Start by figuring out what your current working directory is for your running script  Add this line at the beginning      puts Dir pwd    This will tell you in which current working directory ruby is running your script  You will most likely see it s not where you assume it is  Then make sure you re specifying pathnames properly for windows  See the docs here how to properly format pathnames for windows   http   www ruby-doc org core classes IO html  Then either use Dir chdir to change the working directory to the place where text txt is  or specify the absolute pathname to the file according to the instructions in the IO docs above  That SHOULD do it     EDIT   Adding a 3rd solution which might be the most convenient one  if you re putting the text files among your script files   Dir chdir File dirname   FILE       This will automatically change the current working directory to the same directory as the  rb file that is running the script

User · Answer

Ditto Casper s answer   puts Dir pwd   As soon as you know current working directory  specify the file path relatively to that directory   For example  if your working directory is project root  you can open a file under it directly like this  json file   File read myfile json

User · Answer

Please use chomp   or chomp   with STDIN  i e  test1 rb  print  Enter File name     fname   STDIN gets chomp      or fname   gets chomp     fname read   File open fname   puts fname read read

[ruby] Ruby's File.open gives "No such file or directory - text.txt (Errno::ENOENT)" error

Examples related to ruby