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authorPaul Eggert <eggert@cs.ucla.edu>2006-07-01 23:49:46 +0000
committerPaul Eggert <eggert@cs.ucla.edu>2006-07-01 23:49:46 +0000
commit0830b1b82aa96651e7194211a8992f976f8c2683 (patch)
treed8df6e5d5ad1e37187113cc3276fecb1816730fe
parentaa9b173531d2ac06c2f522301f4635fb58fd8934 (diff)
downloadcoreutils-0830b1b82aa96651e7194211a8992f976f8c2683.tar.xz
(tail invocation): With no operand, 'tail -f' now
silently ignores the '-f' only if standard input is a FIFO or pipe and POSIXLY_CORRECT is set.
-rw-r--r--doc/coreutils.texi7
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 35134366f..abc226ea7 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -2501,8 +2501,7 @@ by 1048576.
@vindex name @r{follow option}
@vindex descriptor @r{follow option}
Loop forever trying to read more characters at the end of the file,
-presumably because the file is growing. This option is ignored if
-no @var{file} operand is specified and standard input is a pipe.
+presumably because the file is growing.
If more than one file is given, @command{tail} prints a header whenever it
gets output from a different file, to indicate which file that output is
from.
@@ -2534,6 +2533,10 @@ growing.
The option values @samp{descriptor} and @samp{name} may be specified only
with the long form of the option, not with @option{-f}.
+@vindex POSIXLY_CORRECT
+If @env{POSIXLY_CORRECT} is set, the @option{-f} option is ignored if
+no @var{file} operand is specified and standard input is a pipe.
+
@item -F
@opindex -F
This option is the same as @option{--follow=name --retry}. That is, tail