这个是我们开发机上创建用户的脚本,我简化了一下,使用很简单, ./
add_user.sh username
可以创建一个用户,只能在自己的目录下玩耍。
add_user.sh#!/bin/bash
# Script to add a user to Linux system
function generate_pass() {
    MATRIX="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
  LENGTH=$1
  while [ "${n:=1}" -le "$LENGTH" ]
  do
    PASS="$PASS${MATRIX:$(($RANDOM%${#MATRIX})):1}"
    let n+=1
  done
  echo "$PASS"
}
username=$1
if [ -z $username ];then
  echo "username is empty"
  exit 1
fi
password=$(generate_pass 6)
if [ $(id -u) -eq 0 ]; then 
  egrep "^$username" /etc/passwd >/dev/null
  if [ $? -eq 0 ]; then
    echo "$username exists!"
    exit 1
  else
    pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
    useradd -m -p $pass $username
    # record
    time=$(date "+%Y-%m-%d-%H-%M-%S")   
    echo "create username $username with password $password at $time" >> user_account.txt
    [ $? -eq 0 ] && echo "User has been added to system!" || echo "Failed to add a user!"
  fi
else
  echo "Only root may add a user to the system"
  exit 2
fi