Shell command _for

chmod 755 demo.sh./demo.sh

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#!/bin/bash# Author:James 2016-10-15# 集合以空格分割fori in 1 2 3 4 5 6    do        echo "$i"    done #!/bin/bash# Author:James 2016-10-15# 批量压缩脚本cd /tmp/shs#所有sh文件覆盖到sh.log文件ls *.sh > sh.logfor i in $(cat sh.log)    do        #tar -zxf $i &>/dev/null        echo "File Name is $i"    donerm -rf /tmp/shs/sh.log #!/bin/bash# Author:James 2016-10-15# 计算1..100之和sum=0for(( i=1;i<=100;i++ ))        do                #echo "$i"                sum=$(( $sum+$i ))        doneecho "sum is:$sum" #!/bin/bash# Author:James 2016-10-15# 批量添加用户和默认密码 #等待30秒输入nameread -t 30 -p "input name:" nameread -t 30 -p "input password:" passread -t 30 -p "input number:" num# 输入的name,pass,num都不是控制if [ ! -z "$name" -a ! -z "$pass" -a ! -z "$num" ]        then                # 将num变量以数字开头的结尾的字符改为空字符串                y=$(echo $num | sed ‘s/^[0-9]*$‘//g)                #变量y为空，表示num变量都是数字                if [ -z "$y" ]                        then                                for(( i=1;i<=$num;i++ ))                                        do                                                #批量添加用户                                                /usr/sbin/useradd "$name$i" &>/dev/null                                                #批量赋予默认密码                                                echo $pass | /usr/bin/passwd --stdin "&name$i" &>/dev/null                                        done                fifi# 使用cat /etc/passwd 查看用户是否增加成功

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Shell command _for