  400  set | grep PATH
  401  clear
  402  YEAR_NOW=2024
  403  echo $YEAR_NOW
  404  bash
  405  echo $YEAR_NOW
  406  echo $$
  407  clear
  408  echo $$
  409  clear
  410  ps
  411  pstree
  412  clear
  413  pstree
  414  ps
  415  clear
  416  echo $$
  417  YEAR_NOW=2024
  418  export YEAR_NOW_PUB=2024
  419  echo $YEAR_NOW
  420  echo $YEAR_NOW_PUB 
  421  bash
  422  clear
  423  echo 3453405 >2024.txt
  424  echo 4353455 >2023.txt
  425  date
  426  man date
  427  date %Y
  428  date -%Y
  429  man date
  430  date +%Y
  431  export ACT_YEAR=`date +%Y`
  432  echo $ACT_YEAR 
  433  echo $ACT_YEAR.txt
  434  cut $ACT_YEAR.txt
  435  cat $ACT_YEAR.txt
  436  export ACT_YEAR_REVENUE=`cat $ACT_YEAR.txt`
  437  echo $ACT_YEAR_REVENUE 
  438  echo $ACT_YEAR
  439  history 

