It's a common practice to download oracle software from website to your laptops for any installation, upgrades, patching ... however sometimes when you have a interrupting network connection you are left with a question over the file being download is complete?
Utilize the csum command to check if the download file is complete & not corrupted
Example in AIX
$csum p8202632_10205_AIX64-5L_1of2.zip
$csum -h SHA1 p8202632_10205_AIX64-5L_1of2.zip
Compare the output with metadata which is present on OTN if the output matches you are good to go & rest with peace
