linux的shell命令，Shell命令_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 for? i in 1 2 3 4 5 6 ????do ????????echo "$i" ????done ? #!/bin/bash # Author:James 2016-10-15 # 批量壓縮腳本 cd /tmp/shs #所有sh文件覆蓋到sh.log文件 ls *.sh > sh.log for i in $(cat sh.log) ????do ????????#tar -zxf $i &>/dev/null ????????echo "File Name is $i" ????done rm -rf /tmp/shs/sh.log ? #!/bin/bash # Author:James 2016-10-15 # 計算1..100之和 sum=0 for(( i=1;i<=100;i++ )) ????????do ????????????????#echo "$i" ????????????????sum=$(( $sum+$i )) ????????done echo "sum is:$sum" linux的shell命令。? #!/bin/bash # Author:James 2016-10-15 # 批量添加用戶和默認密碼 #等待30秒輸入name read -t 30 -p "input name:" name read -t 30 -p "input password:" pass read -t 30 -p "input number:" num # 輸入的name,pass,num都不是控制 if [ ! -z "$name" -a ! -z "$pass" -a ! -z "$num" ] ????????then ????????????????# 將num變量以數字開頭的結尾的字符改為空字符串 ????????????????y=$(echo $num | sed 's/^[0-9]*$'//g) ????????????????#變量y為空，表示num變量都是數字 ????????????????if [ -z "$y" ] ????????????????????????then ????????????????????????????????for(( i=1;i<=$num;i++ )) ????????????????????????????????????????do ????????????????????????????????????????????????#批量添加用戶 ????????????????????????????????????????????????/usr/sbin/useradd "$name$i" &>/dev/null ????????????????????????????????????????????????#批量賦予默認密碼 ????????????????????????????????????????????????echo $pass | /usr/bin/passwd --stdin "&name$i" &>/dev/null ????????????????????????????????????????done ????????????????fi fi # 使用cat /etc/passwd 查看用戶是否增加成功

來自為知筆記(Wiz)