You are free to put it anywhere you like, for example create the directory /opt/local/bin
Code:
mkdir -p /opt/local/bin
then copy wget to it
Code:
cp wget /opt/local/bin
chmod +x /opt/local/bin/wget
then add the destination directory to your PATH
Code:
PATH=$PATH:/opt/local/bin
If you want this PATH setting to persist, set it in /etc/default/login
Extract of /etc/default/login file:
Code:
...
# PATH sets the initial shell PATH variable
#
PATH=/usr/bin:/sbin:/usr/sbin:/opt/local/bin
...