local commands in ftp shell 2

[kh1978]

hello together,
has anybody an idea how can i execute local commands (like dd) in a ftp shell? I will check the transmission speed with ftp. Can anybody help me?

best regards
kh1978

 

[KenCunningham]

ftp isn't a shell. There are a limited number of commands available within an ftp session, type ? in the session to see them.

 

[kh1978]

I want to create a file with dd in a ftp session to transmit this file. Can anybody help me? You can use the dd command in compination with the put/get command. But i can't remind me how this combination looked. anybody an idea?

 

[letis]

damn it, I had a tip to crate and send a file in one line, but don't remember exactly (

However to send commands to the shell, prefix the commands with !
eg :
ftp> !dd if=/dev/hdisk0 of=/tmp/file bs=1025 count=1000

by the way, the lcd command in ftp changes the local directory :
ftp> lcd /tmp
ftp> binary
ftp> put file

hope it helps, and if someone remembers the combination of '!dd' and 'put' in one line (there was a | in the command),please snd it !

regards

 

[nwardez]

Hi,

Try enclose your dd command with " "
ftp> binary
ftp> put "| dd if=/path/my_file_local" /path/my_file_remote

 

[RodKnowlton]

Since ftp already reports transfer speed, why would you want to introduce the extra overhead of pipes and processes?

Rod Knowlton
IBM Certified Advanced Technical Expert pSeries and AIX 5L

 

[kh1978]

Because you can see the real network speed if you copy one file from /dev/null to the remote host in /dev/null. Then you have no traffic on your hard disk.

 

[RodKnowlton]

kh1978,

Thanks for responding. That'll be handy to know if I can ever get the network upgraded to actually be faster than my disks.

Rod Knowlton
IBM Certified Advanced Technical Expert pSeries and AIX 5L