这是我在wiz的第一个测试笔记

#!/bin/bash
#
function adduser {
   if [ $# -lt 1 ]; then
	return 2
	# 2: no arguments
   fi
   if id $1 &> /dev/null; then
	echo "$1 exists."
	return 1
   else	
	useradd $1
	[ $? -eq 0 ] && echo "Add $1 finished." && return 0
   fi
}
for i in {1..10}; do
    adduser myuser$i
done

#!/bin/bash
#
function adduser {
   if [ $# -lt 1 ]; then
	return 2
	# 2: no arguments
   fi
   if id $1 &> /dev/null; then
	echo "$1 exists."
	return 1
   else	
	useradd $1
	[ $? -eq 0 ] && echo "Add $1 finished." && return 0
   fi
}
for i in {1..10}; do
    adduser myuser$i
done