> Hi > book version: lfs 6.1 > after instaling the gzip we use some commands like : > ln -s gzip /bin/gunzip > ok , this command will make a symlink (/bin/gunzipz) to gzip command . > but /bin/gunzip is just a link and i think it means : > when i use gunzip command , the link starts gzip command . > now my question is : > so if i use a gzip command to decompress some file it should work and > should decompress it . > (gzip sample.tar.gz) should work like gunzip , because gunzip is just > a symlink to gzip ;but it's not possible and i get error : > sample.tar.gz already has .gz suffix -- unchanged. > > Are there some extra features in gzip or ln command ?
The gzip command behaves differently depending on how it is called; I would guess it just looks at the arguments passed to main(*). I did a little experimenting, and it seems if it is invoked with any name except 'gunzip' it compresses, and if it is invoked as 'gunzip' then it decompresses. Mike -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
