zhouzmo/learn_c

挂载跟文件系统脚本

#!/bin/bash mount -t nfs -o nolock,vers=3 192.168.5.11:/home/book /mnt echo 1 4 1 7 > /proc/sys/kernel/printk

删除指定文件

linux 命令行下 find . -type f -name ".out" -exec rm {} ; find . -type f -name ".exe" -exec rm {} ;

开启内核打印

echo "7 4 1 7" > /proc/sys/kernel/printk

屏蔽内核打印

echo 1 4 1 7 > /proc/sys/kernel/printk

修改设备树文件

$ vim /home/book/100ask_imx6ull-sdk/Linux-4.9.88/arch/arm/boot/dts/100ask_imx6ull-14x14.dts +101

$ cd /home/book/100ask_imx6ull-sdk/Linux-4.9.88 $ make dtbs

board

$ cp /mnt/100ask_imx6ull-sdk/Linux-4.9.88/arch/arm/boot/dts/100ask_imx6ull-14x14.dtb /boot/ $ reboot $ insmod gpio_key_drv.ko

按下按键，查看 dmesg

$ dmesg |tail -n20

sudo ifconfig ens38 192.168.5.11

cd /mnt/learn_c/3-driver/0 cd /home/book/learn_c/3-driver/0

挂载跟文件系统脚本

统计数量

netstat -n|awk '/^tcp/{++S[$NF]}END{for (key in S) print key,S[key]}'

网络

watch -n 0.1 -d 'netstat -na | grep 8888' watch -n 0.1 -d 'ps -ef | grep -E out'

gdb -tui -q server.out

printf("%s:%s:%d\n", FILE, FUNCTION, LINE); printf("%s:%d\n", FUNCTION, LINE);