grep 'crawler_news_insert' stderr.log.2020-01-29-12 | awk '{print $2}' | awk -F':' '{cnt[$2]+=1}END{for(c in cnt){print c,cnt[c]}}' | sort -n -k 1

chage -l li

nc -l 9999 > xxxx.zip

nc 192.168.1.3 9999 < xxxx.zip

# 
# 分离出每个接口每秒的请求次数、平均请求时间
grep "T07:30:" access_www.more.buzz.log access_www.morenews1.com.log | awk '{split($4, t, ":");split($6, a, "?");cnt[t[2]":"t[3]"\t"a[1]]+=1;times[t[2]":"t[3]"\t"a[1]]+=$NF}END{for(c in cnt){print c"\t"cnt[c]"\t"times[c]"\t"times[c]/cnt[c]}}'

# 时间正则匹配，统计大于10s的请求
grep '2020-05-22 11:11:[45]' access.log | awk '{if ($8 > 10000) { cnt[$5] += 1}}END{for(c in cnt){print c,cnt[c]}}'

# 查看物理CPU个数
cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l

# 查看每个物理CPU中core的个数(即核数)
cat /proc/cpuinfo| grep "cpu cores"| uniq

# 查看逻辑CPU的个数
cat /proc/cpuinfo| grep "processor"| wc -l