1、使用一个用户名作为参数,如果指定参数的用户存在,就显示其存在,否则添加之;显示添加的用户的id号等信息
#!/bin/bash # read -p "please input one UserName: " USERNAME id $USERNAME &>/dev/null if [ $? -eq 0 ];then echo "The User is exist" exit else useradd $USERNAME echo "$USERNAME already add" echo "`grep "\<$USERNAME\>" /etc/passwd`" fi
2、判断用户输入文件路径,显示其文件类型(普通、目录、链接,其他文件类型)
#!/bin/bash # read -p "please input valid path: " PATH1 [ ! -e $PATH1 ] && echo "This path is non-exsit" && exit type1=`ls -ld $PATH1 | grep -o "^."` case $type1 in -) echo "This is file" ;; d) echo "This is directory" ;; l) echo "This is links" ;; p) echo "This is pipe" ;; s) echo "This is sokect" ;; c) echo "This is charater" ;; b) echo "This is block" ;; esac
3、添加10个用户user1-user10,密码同用户名
#!/bin/bash # for i in {1..10} do id user$i &> /dev/null if [ $? -eq 1 ];then useradd user$i echo "user$i" | passwd --stdin user$i &> /dev/null echo "The User$i success add!" else echo "The User$i is exist" fi done
4、使用for循环打印九九乘法表
#!/bin/bash # for h in {1..9} do for l in `seq 1 $h` do squ=$(($h*$l)) echo -ne "${h}x${l}=$squ\t" done echo done
5、使用for循环打印国际象棋棋盘
#!/bin/bash # for j in {1..8} do for i in {1..8} do if [ $[($i+$j)%2] -eq 1 ];then echo -ne "\e[41m \e[0m" else echo -ne "\e[47m \e[0m" fi done echo "" done
时间: 2024-10-20 09:13:19