The Single UNIX ® Specification, Version 2
Copyright © 1997 The Open Group


puts - put a string on standard output


#include <stdio.h>

int puts(const char *s);


The puts() function writes the string pointed to by s, followed by a newline character, to the standard output stream stdout. The terminating null byte is not written.

The st_ctime and st_mtime fields of the file will be marked for update between the successful execution of puts() and the next successful completion of a call to fflush() or fclose() on the same stream or a call to exit() or abort().


Upon successful completion, puts() returns a non-negative number. Otherwise it returns EOF, sets an error indicator for the stream and errno is set to indicate the error.


Refer to fputc().




The puts() function appends a newline character, while fputs() does not.




fputs(), fopen(), putc(), stdio(), <stdio.h>.


Derived from Issue 1 of the SVID.

UNIX ® is a registered Trademark of The Open Group.
Copyright © 1997 The Open Group
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