diff options
| -rw-r--r-- | doc/coreutils.texi | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index f74dd1c34..4b0917d3f 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -15398,6 +15398,17 @@ three standard I/O streams associated with a program. Synopsis: stdbuf @var{option}@dots{} @var{command} @end example +@var{command} must start with the name of a program that +@enumerate +@item +uses the ISO C @code{FILE} streams for input/output (note the +programs @command{dd} and @command{cat} don't do that), + +@item +does not adjust the buffering of its standard streams (note the +program @command{tee} is not in this category). +@end enumerate + Any additional @var{arg}s are passed as additional arguments to the @var{command}. @@ -15446,12 +15457,6 @@ Specify the size of the buffer to use in fully buffered mode. @end table -NOTE: If @var{command} adjusts the buffering of its standard streams -(@command{tee} does for e.g.) then that will override corresponding settings -changed by @command{stdbuf}. Also some filters (like @command{dd} and -@command{cat} etc.) don't use streams for I/O, and are thus unaffected -by @command{stdbuf} settings. - @cindex exit status of @command{stdbuf} Exit status: |