记录日志2
https://www.cnblogs.com/z-x-y/p/9235358.html
permission denied
https://jingyan.baidu.com/article/90808022fa50dbfd90c80f52.html
linux所有命令不能用显示-bash: ls: command not found
https://www.cnblogs.com/cnsdhzzl/p/9625736.html
https://blog.csdn.net/sun_81/article/details/86714128
https://blog.csdn.net/qq_19734597/article/details/94971925
如何科学使用stackoverflow
https://blog.csdn.net/weixin_38233274/article/details/80349534
虚拟机报错
https://blog.csdn.net/Alan729085065/article/details/81162827
chmod命令
https://www.runoob.com/linux/linux-comm-chmod.html
chmod 777 /etc/profile
SFTP error #3:permission denied
https://blog.csdn.net/wangmengmeng99/article/details/100271632
vim查找
/+str
tar解压
tar zxvf voc_0712_80k-110k.tgz -C data
【cp】 +【-r】+【目录名(可带路径)】+【目标路径(带路径)】 -r 表示复制目录下所有子目录以及文件
如:cp -r release ~/nfs/
https://www.cnblogs.com/lizm166/p/7975744.html
mkdir

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