查询进程 TCP:alloc(allocated):已分配的TCP套接字数量

cat >tcp_alloc.sh <<-'EOF'
#!/bin/sh
for i in  /proc/* ;
do
  if [ -d $i/fd ];then
    echo $i   $(ls $i/fd -l | grep socket: |wc -l)
  fi
done
EOF

sh tcp_alloc.sh >tcp_alloc_$(date +%F-%H-%M).log && cat tcp_alloc_$(date +%F-%H-%M).log|sort -r -n -k 2 | uniq|head -10