file-write – Writing to files – Computer Science by Example

file-write – Writing to files

Write a program that:

creates a text file called message.txt with a single line containing a “Hello file system.” message on it;
writes the line “Created text file message.txt” to the standard output.

Here is an example command line session:

$ ./file-write
Created text file message.txt
$ cat message.txt
Hello file system.

Both the messages on the standard output and file should be followed by a line break.

Writing to a file

Scoring

½: produces the required messages in an incorrect format
2/2: produces the required messages in the correct format

Hints

If your program is working correctly, you should be able to open the message.txt file in your text editor of choice: gedit, nano, vi, notepad, etc. You should see the written message on it.

On Linux systems you can use cat message.txt to the the contents of the message.txt file from the command line. On Windows system you can use type message.txt.

The line in message.txt should be proper, include a line break after it.

try first: hello

try next: file-read

index | submit | rank | book