How to know whether wget has completed download successfully?

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http://unix.stackexchange.com – I attempted to download openSUSE 12.1 through wget. It stopped after 64% showing: 05:54:48 (120.30 KB/s) - `openSUSE-12.1-DVD-i586.iso' saved 4429185024/4429185024] It appears that the download is complete but then why does it show 64% only? anisha@linux-2gbt:~> wget -c http://ftp.uni-bremen.de/pub/mirrors/opensuse/distribution/openSUSE-stab... --11:39:58-- http://ftp.uni-bremen.de/pub/mirrors/opensuse/distribution/openSUSE-stab... => `openSUSE-12.1-DVD-i586.iso' Resolving ftp.uni-bremen.de... Conn (HowTos)