使用者權限群組相關

#adduser kk1
#passwd kk1
New password:....
#su kk1
$logout   //登出回到root

+++++++++++++++++++++++++++++++++++++++

#groupadd sales   //新增群組sales
#cat /etc/group
#adduser -g sales kk2   //新增帳號kk2且加入sales群組
#passwd kk2
#cat /etc/passwd   //查看帳號資料   或   #id kk2

+++++++++++++++++++++++++++++++++++++++

#cp install.log install.log.kk
#ls -l install.log.kk
#chown kk2:sales install.log.kk   //變更檔案install.log.kk擁有者及群組
#ls -l install.log.kk


#chmod ugo+x install.log.kk   //檔案增加u,g,o 權限r,w,x(4,2,1)

# chmod -R +w /home/kk2   //資料夾變更權限

+++++++++++++++++++++++++++++++++++++++

#gzip install.log.kk   //壓縮為install.log.kk.gz

#gunzip install.log.kk.gz

#tar -cvf Myinstall.log.tar install.log.kk install.log.mm

//打包成Myinstall.log.tar

//-c產生新的包裹檔 -v看指令進度

//-f指定包裹檔名稱 -x將包裹檔解開

#tar -xvf Myinstall.log.tar

#tar -czvf Myinstall.log.tar.gz install.log.kk install.log.mm

//先打包再壓縮 *.tar + *.gz =*.tar.gz

#tar -xzvf  Myinstall.log.tar.gz   //先解壓縮再解開包裹檔