I tried the command on SCO Unix 5.0.4 with wget 1.10.2 and had the same result as you.
On Mon, 27 Mar 2006, gang wu wrote: > Hi, > > Can anyone try the following line several times to see if it downloads > the file every time? > > wget -N > ftp://ftp.ncbi.nih.gov/genomes/Arabidopsis_thaliana/CHR_V/NC_003076.gbk > > With the -N option, should wget download the remote file only once if > the remote and local files have the same timestamp and file size? I saw > the command downloaded the file every time with a message that says the > file sizes do not match. I'm using version 1.10 with Redhat Enterprise > v4. Did I do something wrong? > > For smaller files it seems working properly. > > Any suggestion is appreciated. > > Gang > >