I sometimes wonder if cmd.exe will ever get the -h treatment a lot of unixy tools have received… dir is definitely still living in the MS-DOS era. For example:
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T:\>dir v: Volume in drive V is video Volume Serial Number is 0254-04EC Directory of V:\ 26/07/2010 09:22 <DIR> . 04/06/2010 09:56 <DIR> .. 26/02/2010 10:41 <DIR> DVD 04/10/2010 13:12 <DIR> TV 22/03/2008 13:41 <DIR> TiVo 26/02/2010 10:41 <DIR> inbound 21/05/2010 09:57 <DIR> redux 12/06/2010 19:40 1,900,601,954 Dance Recital.mp4 1 File(s) 1,900,601,954 bytes 8 Dir(s) 4,612,702,208,000 bytes free |
For those that don’t get it, that’s 4.6TiB available. Why not say “4.6TiB”… or even “4.2TB” or at least provide a switch to do so? Most Unixish tools have -h and -H options to do just this. The same file system, but on the file server:
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chrisy@baud:~$ df -H /data Filesystem Size Used Avail Use% Mounted on /dev/mapper/vmraw-data 8.0T 3.4T 4.6T 42% /data chrisy@baud:~$ df -h /data Filesystem Size Used Avail Use% Mounted on /dev/mapper/vmraw-data 7.3T 3.1T 4.2T 42% /data |
The difference between the two being whether it uses 1000 or 1024 as the divisor.