Mac 常用命令

Mac 常用命令.md

## HomeBrew
export HOMEBREW_VERBOSE=1
export HOMEBREW_NO_AUTO_UPDATE=1
# change repo
cd /usr/local/Homebrew
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-science"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-science.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-python"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-python.git
brew update


## top
# order by
top -o [+]mem|cpu|time|pid


# -n, number
# -r, route table
netstat -nr


## packet filter control
# port forword
sudo sysctl -w net.inet.ip.forwarding=1
echo "rdr pass inet proto tcp from any to any port 80 -> 127.0.0.1 port 8080" | sudo pfctl -ef -
# -s modifier, show
sudo pfctl -s nat
# -F modifier, flush
sudo pfctl -F all