用户管理与文件权限篇

 237  mkdir -p /temp/oldboy/python/{egon,lqz,xqd}
  238  cd /
  239  tree temp
  240  find / -type f -name ifc*
  241  find /etc/ -type f -name ifc*
  242  ifconfig
  243  cat /etc/tmp
  244  cat /etc/passwd
  245  cat /etc/passwd  > /tmp/passwd
  246  cat -n /tmp/passwd
  247  grep "root" /tmp/passwd
  248  vim /tmp/passwd
  249  grep '/sbin/nologin' /tmp/passwd
  250  grep -v "/sbin/nologin" /tmp/passwd -n
  251  tail -f /var/log/py.log
  252  cd /etc/sysconfig/network-scripts/
  253  ls
  254  vim ifcfg-ens33 
  255  cat /etc/redhat-release
  256  cat /etc/os-release
  257  ls /home
  258  vim /etc/passwd
  259  useradd banzhuren
  260  ls /home
  261  tail -2 /etc/passwd
  262  cd /tmp
  263  ls
  264  clear
  265  id banzhuren
  266  cat /etc/group
  267  clear
  268  su - banzhuren
  269  ls /root
  270  vim /etc/sudoers
  271  useradd egon
  272  passwd egon
  273  vim /etc/sudoers
  274  visudo
  275  clear
  276  ll
  277  ls
  278  touch 小师弟.txt
  279  ls
  280  echo "小师弟干活去" >> 小师弟.txt
  281  cat 小师弟.txt 
  282  clear
  283  chmod o-r 小师弟.txt
  284  ll
  285  chmod o+r 小师弟.txt
  286  chmod o+w 小师弟.txt 
  287  ll
  288  chmod o+x 小师弟.txt 
  289  mkdir 大师兄
  290  ll
  291  chmod 750 大师兄/
  292  chmod 754 大师兄/
  293  chmod 756 大师兄/
  294  chmod 757 大师兄/
  295  ls
  296  chown egon 大师兄/
  297  ll
  298  chgrp egon 大师兄/
  299  ll
  300  chmod 755 大师兄/
  301  ll
  302  ln -s /tmp/小师弟.txt  /opt/xsd.txt
  303  cd /opt
  304  ls
  305  ll
  306  cat xsd.txt
  307  vim /etc/profile
  308  python3
  309  vim /etc/profile
  310  source /etc/profile
  311  python3
  312  echo $PATH
  313  ls
  314  cd python36/bin/
  315  ls
  316  python3.6
  317  ./python3.6
  318  pwd
  319  ln -s /opt/python36/bin/python3.6  /usr/bin/python3
  320  python3
  321  pip3
  322  which python3
  323  ll /usr/bin/python3
  324  rm -rf /usr/bin/python3
  325  vim /etc/profile
  326  python3
  327  source /etc/profile
  328  python3
  329  clear
  330  ls
  331  cd /tmp
  332  ls
  333  tar -cvf allTmp.tar  ./*
  334  ls
  335  mv allTmp.tar ../
  336  ls
  337  rm -rf *
  338  ls
  339  mv ../allTmp.tar .
  340  ls
  341  ll
  342  ll -h
  343  tar -xvf allTmp.tar
  344  ls
  345  ll
  346  ll -h
  347  tar -zcvf allTmp2.tar.gz 大师兄/ 小师弟.txt 
  348  ll
  349  ll -h
  350  clear
  351  touch 小师妹.txt
  352  vim 小师妹.txt 
  353  ll
  354  ll -h
  355  vim 小师妹.txt 
  356  ll -h 小师妹.txt 
  357  vim 小师妹.txt 
  358  ll -h 小师妹.txt 
  359  vim 小师妹.txt 
  360  ll -h 小师妹.txt 
  361  tar -cvf xsm.tar 小师妹.txt 
  362  ll -h
  363  tar -zcvf xsm.tar.gz 小师妹.txt 
  364  ll -h
  365  rm -rf xsm.tar
  366  ll
  367  ll -h
  368  rm -rf 小师妹.txt 
  369  ll -h
  370  tar -zvf xsm.tar.gz 
  371  du -h xsm.tar.gz 
  372  tar -zxvf xsm.tar.gz 
  373  ll -h
  374  ll -h 小师妹.txt 
  375  touch xx.tar.gz.xz
  376  ls
  377  rm -rf xx.tar.gz.xz