一个简单的脚本

#! /bin/bash
#useradd $1
# test $# -eq 1   || echo "args error" && exit 2
[ ! $# -eq 1 ] && echo "args ERROR !!!!" && exit 2
id $1 >& /dev/null && echo "user exits"  && exit 3
useradd $1 >& /dev/null  && echo $1:$1 | chpasswd >&/dev/null && echo "user add successfully" exit 4

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转载自blog.csdn.net/czw0723/article/details/87741307