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| author | Sergey Poznyakoff <gray@gnu.org.ua> | 2017-11-16 14:31:53 +0200 |
|---|---|---|
| committer | Sergey Poznyakoff <gray@gnu.org.ua> | 2017-11-16 14:31:53 +0200 |
| commit | ee0508f01c45754d5fa370f60e01aa5f88285344 (patch) | |
| tree | a04b8acdd6248452d6a913c27a1e00d34731bf9f | |
| parent | 32e51de2af3ac51dd7a00754d1f6d241ea3c0403 (diff) | |
| download | tar-ee0508f01c45754d5fa370f60e01aa5f88285344.tar.gz | |
Minor improvements in the docs.
| -rw-r--r-- | doc/tar.1 | 5 | ||||
| -rw-r--r-- | doc/tar.texi | 2 |
2 files changed, 5 insertions, 2 deletions
@@ -219,7 +219,10 @@ There is no short option equivalent for this option. \fB\-u\fR, \fB\-\-update\fR Append files which are newer than the corresponding copy in the archive. Arguments have the same meaning as with \fB\-c\fR and -\fB\-r\fR options. +\fB\-r\fR options. Notice, that newer files don't replace their +old archive copies, but instead are appended to the end of archive. +The resulting archive can thus contain several members of the +same name, corresponding to various versions of the same file. .TP \fB\-x\fR, \fB\-\-extract\fR, \fB\-\-get\fR Extract files from an archive. Arguments are optional. When given, diff --git a/doc/tar.texi b/doc/tar.texi index 572e3dd9..5d2d057a 100644 --- a/doc/tar.texi +++ b/doc/tar.texi @@ -5195,7 +5195,7 @@ the one at the end will be newer and larger, since you added text before updating it. The reason @command{tar} does not overwrite the older file when updating -it is because writing to the middle of a section of tape is a difficult +it is that writing to the middle of a section of tape is a difficult process. Tapes are not designed to go backward. @xref{Media}, for more information about tapes. |