Re: I think I found a bug in the mv command

[Jim Meyering]

Ian MacGregor <address@hidden> wrote:
> I think I found a bug in the mv command.
...
> When I change line #9 in the bash script from
> mv /home/storage/backup.tar.gz /home/storage/`date +%Y%m%d-%k%M`-backup.tar.gz
> to
> mv /home/storage/backup.tar.gz /home/storage/`date +%Y%m%d-%I%M`-backup.tar.gz
> the command runs fine and the only output is below, and as a cronjob, it runs

Thanks for the report, but that's not a bug in mv.  Your date
command is printing a space in the expansion of %k when the
hour is a single digit number.  That space makes it so `mv'
sees three arguments, and provokes the diagnostic you reported.

  $ date --date='2005-02-04 02:00' +%Y%m%d-%k%M
  20050204- 200

Use a format like %H that has zero-filled numbers.

  $ date --date='2005-02-04 02:00' +%Y%m%d-%H%M
  20050204-0200