From what I understand, killing wget processes may result in resource
leaks.
Really? What kind of resource leaks are you referring to? Wget does
not create temporary files, nor does it allocate external resources
other than dynamically allocated memory and network connections, both
of which will be reaped by the kernel when the process is terminated
in any manner.
That's good to know since I'm actively engaged in running 10-20 wget
processes concurrently and have to kill at least 1 process a day.
Frank