10-09-2018
You need to be very fast to not copy your file - the -u, --update option, copies "only when the SOURCE file is newer than the destination file or when the destination file is missing". You'd need to copy twice within a minute to hit a file with the same name older than your actual one.
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MV(1) User Commands MV(1)
NAME
mv - move (rename) files
SYNOPSIS
mv [OPTION]... [-T] SOURCE DEST
mv [OPTION]... SOURCE... DIRECTORY
mv [OPTION]... -t DIRECTORY SOURCE...
DESCRIPTION
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.
Mandatory arguments to long options are mandatory for short options too.
--backup[=CONTROL]
make a backup of each existing destination file
-b like --backup but does not accept an argument
-f, --force
do not prompt before overwriting
-i, --interactive
prompt before overwrite
-n, --no-clobber
do not overwrite an existing file
If you specify more than one of -i, -f, -n, only the final one takes effect.
--strip-trailing-slashes
remove any trailing slashes from each SOURCE argument
-S, --suffix=SUFFIX
override the usual backup suffix
-t, --target-directory=DIRECTORY
move all SOURCE arguments into DIRECTORY
-T, --no-target-directory
treat DEST as a normal file
-u, --update
move only when the SOURCE file is newer than the destination file or when the destination file is missing
-v, --verbose
explain what is being done
-Z, --context
set SELinux security context of destination file to default type
--help display this help and exit
--version
output version information and exit
The backup suffix is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX. The version control method may be selected via the --backup
option or through the VERSION_CONTROL environment variable. Here are the values:
none, off
never make backups (even if --backup is given)
numbered, t
make numbered backups
existing, nil
numbered if numbered backups exist, simple otherwise
simple, never
always make simple backups
AUTHOR
Written by Mike Parker, David MacKenzie, and Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report mv translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
rename(2)
Full documentation at: <http://www.gnu.org/software/coreutils/mv>
or available locally via: info '(coreutils) mv invocation'
GNU coreutils 8.28 January 2018 MV(1)