8.8 Signals

Since the purpose of Wget is background work, it catches the hangup signal (SIGHUP) and ignores it. If the output was on standard output, it will be redirected to a file named ‘wget-log’. Otherwise, SIGHUP is ignored. This is convenient when you wish to redirect the output of Wget after having started it.

$ wget http://www.gnus.org/dist/gnus.tar.gz &
...
$ kill -HUP %%
SIGHUP received, redirecting output to `wget-log'.

Other than that, Wget will not try to interfere with signals in any way. C-c, kill -TERM and kill -KILL should kill it alike.