tailf: deprecated
We want to remove it in 2 years, March 2017. See discussion "tailf, really needed?" http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/10967 [kzak@redhat.com: - move warning to usage()] Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl> Signed-off-by: Karel Zak <kzak@redhat.com>
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@ -3,6 +3,11 @@ deprecated utils are in maintenance mode and we keep them in source tree for
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backward compatibility only.
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backward compatibility only.
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what: tailf
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why: "tail -f" is better nowadays, tailf has unfixed bugs
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--------------------------
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what: sfdisk --show-size
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what: sfdisk --show-size
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why: this does not belong to fdisk, use "blockdev --getsz"
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why: this does not belong to fdisk, use "blockdev --getsz"
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@ -1,2 +1,3 @@
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tailf: warning: use of 'tailf' is deprecated, use 'tail -f' instead
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a b c d e f g h i j k l m n o p q r s t u v w x y z
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a b c d e f g h i j k l m n o p q r s t u v w x y z
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0 1 2 3 4 5 6 7 8 9
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0 1 2 3 4 5 6 7 8 9
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@ -29,6 +29,12 @@ tailf \- follow the growth of a log file
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[option]
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[option]
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.I file
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.I file
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.SH DESCRIPTION
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.SH DESCRIPTION
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.B tailf is deprecated.
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It may have unfixed bugs and will be removed in March 2017. Nowadays it's safe
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to use
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.B tail -f
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(coreutils) in contrast to the original documentation below.
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.PP
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.B tailf
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.B tailf
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will print out the last 10 lines of the given \fIfile\fR and then wait
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will print out the last 10 lines of the given \fIfile\fR and then wait
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for this \fIfile\fR to grow. It is similar to
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for this \fIfile\fR to grow. It is similar to
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@ -19,13 +19,18 @@
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* less -F and tail -f cause a disk access every five seconds. This
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* program avoids this problem by waiting for the file size to change.
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* Hence, the file is not accessed, and the access time does not need to be
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* flushed back to disk. This is sort of a "stealth" tail.
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*/
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*/
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/*
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* This command is deprecated. The utility is in maintenance mode,
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* meaning we keep them in source tree for backward compatibility
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* only. Do not waste time making this command better, unless the
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* fix is about security or other very critical issue.
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*
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* See Documentation/deprecated.txt for more information.
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*/
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <unistd.h>
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@ -202,6 +207,7 @@ static void __attribute__ ((__noreturn__)) usage(FILE *out)
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fputs(USAGE_HELP, out);
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fputs(USAGE_HELP, out);
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fputs(USAGE_VERSION, out);
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fputs(USAGE_VERSION, out);
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fprintf(out, USAGE_MAN_TAIL("tailf(1)"));
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fprintf(out, USAGE_MAN_TAIL("tailf(1)"));
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fputs(_("Warning: use of 'tailf' is deprecated, use 'tail -f' instead.\n"), out);
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exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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}
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