近期高频命令汇总备查

压缩包

不解压直接查看压缩包目录结构与文件内容

tar tf xxx.tar.gz

端口号

查看某端口号占用情况

netstat -anp | grep <portnumber>
sudo lsof -i:<portnumber>

扫终端

扫描网段内所有设备与mac地址

nmap -sP 192.168.0.0/24
arp -a

过滤器

筛选关键词前后的上下文

grep -A2 <keyword> # 关键词后两行
grep -B1 <keyword> # 关键词前一行
grep -C3 <keyword> # 等于-A3 -B3

软件源

ubuntu换源

sudo sed -i 's@//.*archive.ubuntu.com@//mirrors.ustc.edu.cn@g' /etc/apt/sources.list
sudo sed -i -e 's@//ports.ubuntu.com/\? @//ports.ubuntu.com/ubuntu-ports @g' \
            -e 's@//ports.ubuntu.com@//mirrors.ustc.edu.cn@g' \
            /etc/apt/sources.list

debian换源

sudo sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
sudo sed -i -e 's|security.debian.org/\? |security.debian.org/debian-security |g' \
            -e 's|security.debian.org|mirrors.ustc.edu.cn|g' \
            -e 's|deb.debian.org/debian-security|mirrors.ustc.edu.cn/debian-security|g' \
            /etc/apt/sources.list

tailscale换源(先安装)

sudo sed -i 's,pkgs.tailscale.com/stable,mirrors.ustc.edu.cn/tailscale,g' /etc/apt/sources.list.d/tailscale.list

NVIDIA Container 运行时库

sed -i 's#nvidia.github.io#mirrors.ustc.edu.cn#g' /etc/apt/sources.list.d/nvidia-container-toolkit.list