if条件测试语句
发布时间：2020-12-14 04:21:52 所属栏目：大数据 来源：网络整理
导读：1.vim mkcdrom.sh 2.#!/bin/bash DIR="/media/cdrom" if [ ! -e $DIR ] then mkdir -p $DIR fi 3. 4.vim chkhost.sh 5.#!/bin/bash ping -c 3 -i 0.2 -W 3 $1 /dev/null if [ $? -eq 0 ] then echo "Host $1 is On-line." else echo "Host $1 is Off-line."
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1.vim mkcdrom.sh
2.#!/bin/bash DIR="/media/cdrom" if [ ! -e $DIR ] then mkdir -p $DIR fi 3.
4.vim chkhost.sh 5.#!/bin/bash ping -c 3 -i 0.2 -W 3 $1 &> /dev/null if [ $? -eq 0 ] then echo "Host $1 is On-line." else echo "Host $1 is Off-line." fi 6.
7.vim chkscore.sh 8.#!/bin/bash read -p "Enter your score（0-100）：" GRADE if [ $GRADE -ge 85 ] && [ $GRADE -le 100 ] ; then echo "$GRADE is Excellent" elif [ $GRADE -ge 70 ] && [ $GRADE -le 84 ] ; then echo "$GRADE is Pass" else echo "$GRADE is Fail" fi 9.
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