some common linux tips for common use:
Find a string in a path with grep
Example where scp is the string to find :grep -inr "scp" /home/user
Set linux as reverse proxy with ssh
Example where proxy will be local hostssh user@127.0.0.1 -R 5000:proxy:8080
Clean proxy from shell
export http_proxy=export https_proxy=
export socks_proxy=
best