Last 3 lines wget -i urls.txt:
wget -i urls.txt
FINISHED --2012-05-16 12:58:08-- Total wall clock time: 1h 56m 52s Downloaded: 1069 files, 746M in 1h 52m 49s (113 KB/s)
There are two different times:
1h 56m 52s 1h 52m 49s
Why are they different? What are they worth?
When you have a wall clock time and a shorter time, the shorter time is usually the user time and the missing system time (time in the kernel) or the wait time for something like a file descriptor. (But I did not check what happens with wget). If you are interested in starting time wget http://some.urlor peeking in /proc/<wget-pid>/statduring its operation (provided that you are working on Linux).
time wget http://some.url
/proc/<wget-pid>/stat
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