Bash scripts Add, remove Linux users

Bash scripts: Sequential execution in process-oriented programming: Default rules, execute each statement by execution: branching, conditional judgment, execution of the eligible branches; loop execution: The same piece of code is executed repeatedly for a limited number of times, so the loop must have an exit condition or it will fall into a dead loop ; Program code: Statements and expressions constitute control statements: Bash loop control statement: Forwhileuntilfor loop:for var_name in  list;  do Statement 1 Statement 2...donefor  userName in gentoo mandriva debian; douseradd  $userNamedone syntax error detection:#  bash -n  script File Write a script: Add 10 Users, user101-user110 list generation method: Generate a sequence of numbers: {start. End}, seq [start] [step] end#!/bin/bashfor username in  ' seq 101 110 ';  do  useradd user$userName  echo  "add user$username successfully." Done write a script: delete user102 user105 users                  #!/bin/bash                                  for username in user102 user105;                     do                  userdel  $userName                   echo  "del  $userName  successfully."                      done

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Bash scripts Add, remove Linux users