.\"appends a string to a file
.TH write_file 3

.SH NAME
write_file() - appends a string to a file

.SH SYNOPSIS
int write_file(string file, string str);

.SH DESCRIPTION
Append the string `str' into the file `file'. Returns 0 or 1 for
failure or success.

.SH SEE ALSO
file_size(3), cat(3), log_file(3).