For the times I have to download DB2 installer or any other binaries like product fixpacks on Linux, I can count on a simple and easy option: the wget utility.
With GNU wget we can download files through HTTP – which doesn’t require you to specify user IDs, logon or enter any commands. You simply type wget url_containing_the_file and that’s it, the download begins. Of course you have to have space enough on the directory you are downloading the file.
wget also supports FTP and HTTPS protocols. It has several optional parameters (making it possible to download files even through a HTTP proxy).
Unix and Windows
Looking for it on Google I found it is possible to use wget on AIX as well, after installing it through an RPM package.
On Windows (I know it’s not that useful here), it can be used through the UnixUtils (which is a must-have indeed) tool.
norbertogf@ubuntu:~/installer_db2$ wget https://www6.software.ibm.com/sdfdl/(...)o/db2exc_974_LNX_x86.tar.gz
--2011-08-10 16:28:44-- https://www6.software.ibm.com/sdfdl/(...)o/db2exc_974_LNX_x86.tar.gz
Resolving www6.software.ibm.com... 22.214.171.124
Connecting to www6.software.ibm.com|126.96.36.199|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 393199384 (375M) [application/octet-stream]
Saving to: `db2exc_974_LNX_x86.tar.gz'
100%[====================================================================>] 393,199,384 562K/s in 15m 21s
2011-08-10 16:44:07 (417 KB/s) - `db2exc_974_LNX_x86.tar.gz' saved [393199384/393199384]
AIX Toolbox for Linux Applications
Manage Linux Downloads with wget
…or on Linux, just type man wget