jackos521627的博客

#!/bin/bash# lazy find# GNU All-Permissive License# Copying and distribution of this file, with or without modification,# are permitted in any medium without royalty provided the copyright# notice and this notice are preserved. This file is offered

1.文本文件添加行序号:set number2.输出文本的3-5行:sed -n '3,5p' xxx.txt3.查找文本中有多少个hello: grep -o hello xxx.txt 4.查找进程:ps -ef | grep javanetstat -anp | grep java5.定时任务:crontab -e 0-59 0-23 1-31 1-12 0-6 command...

九.内存①内存泄漏： 占用内存的情况导出到对应的dump：jmap -dump:format=b,file=java.dump pid解析此二进制dump文件：jhat java.dump打开对应的链接：127.0.0.1:7000②查看内存信息：cat /proc/meminfo |grep MemTotal③手动释放内存： ①首先，查看/proc/sys/vm/drop_caches...

七.CPU ①确认CPU型号：cat /proc/cpuinfo |grep "model name"|uniq|cut -f2 -d: ②Super PI(计算时间越短越好)：time echo "scale=500;4*a(1)"|bc -l -q ③逻辑CPU的个数：cat /proc/cpuinfo |grep 'physical id' |sort |uniq ④单个CPU的内核...

一.僵尸进程查杀 自动查杀：ps -A -o stat,ppid,pid,cmd | grep -e '^[Zz]' | awk '{print $2}' | xargs kill -9 查看僵尸进程pid：ps -A -o stat,ppid,pid,cmd | grep -e '^[Zz]' 根据Pid 查看进程属于那个用户：ps -ef |grep pid 查看挂起进程 stoppe...