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| -rw-r--r-- | doc/coreutils.texi | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 5ed8f749e..71fb5c8c3 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -6402,6 +6402,19 @@ results in an error message on systems that do not support symbolic links. @optTargetDirectory +@item -u +@itemx --update +@opindex -u +@opindex --update +@cindex newer files, copying only +Do not copy a non-directory that has an existing destination with the +same or newer modification time. If time stamps are being preserved, +the comparison is to the source time stamp truncated to the +resolutions of the destination file system and of the system calls +used to update time stamps; this avoids duplicate work if several +@samp{cp -pu} commands are executed with the same source and +destination. + @item -v @itemx --verbose @opindex -v @@ -6881,6 +6894,11 @@ about each existing destination file. @cindex newer files, moving only Do not move a non-directory that has an existing destination with the same or newer modification time. +If the move is across file system boundaries, the comparison is to the +source time stamp truncated to the resolutions of the destination file +system and of the system calls used to update time stamps; this avoids +duplicate work if several @samp{mv -u} commands are executed with the +same source and destination. @item -v @itemx --verbose |