u010494405的专栏

1.ls -l *.txt2.cp -r a b 复制文件目录3. if else [root@192 ~]# if [ [a==a == b] ];then echo “very good”; else echo 7771; fi 4.for循环[root@192 ~]# for ((i=1;i<100;i++)); do echo “line

redis for line in $(cat a.txt) do line1= $line: line2=echo "get ${line}" | ./redis-cli echo $line1+$line2 >> a21.txt#!/bin/bash a=1 b=2 echo $[a+b]#数字加d=$(echo $[a+b] )echo "ddd"$d for lin