The command is to be pasted in a dosbox on the oracle server (asuming windows here) or on the C8 server which has all the full oracle client installed.
Let's break the line down to pieces:
imp gosl/gosl@orcl = imp is the oracle import command and gosl/gosl@orcl means that you login into oracle instance "orcl" with the oracle username "gosl" and the password "gosl".
Of course the user gosl with the same password has to be created before running the command.
file=c:\temp\GOSL.DMP = The lcoation of your file to be imported. I hate long path names, so i always copy the oracle user dumps from the C8 sample directory to my c:\temp folder.
fromuser=GOSL = The cognos oracle export includes the user name it was exported under. In this case GOSL.
touser=gosl = This is the oracle schema user where the export needs to be written to. Like i said, the user allready has to be there, with the rights needed as mentioned in the installation guide.
For the other 2 oracle exports connected to the cognso_samples.zip deployment file, the lines would be:
imp gort/gort@orcl file=c:\temp\GORT.DMP fromuser=GORT touser=gort
imp gosldw/gosldw@orcl file=c:\temp\GOSLDW.DMP fromuser=GOSLDW touser=gosldw
Stefan