Miscellaneous Code

Creating files with Test Code

Sometimes we need to create files with text to help us develop or test our code.

Bash or CMD

One ways to create a file in the command line is to use echo

echo "some text" > filename.txt

system() function

Caution

This method is not intended for production code

You can wrap the command in function system() to run a command from your code.
```
system("echo \"some text\" > filename.txt");
```

You can also use sprintf to build you command string using variables. sprintf works similarly to printf except it sends the data to the a variable instead to the screen.

char *filename = "filename.txt";
char command[128];                   // container for the command

// Build a string and store in variable 'command'
sprintf(command, "echo \"%s\" > %s", "some random text", filename);

// Execute the command
system(command);