Linux学习3之shell的if大小比对使用

#!/bin/sh

a=10
b=20

if [ $a == $b ]
then
echo "a is equal to b"
elif [ $a -gt $b ]
then
echo "a is greater than b"
elif [ $a -lt $b ]
then
echo "a is less than b"
else
echo "None of the condition met"
fi

a is less than b

if ... fi 语句；
if ... else ... fi 语句；
if ... elif ... else ... fi 语句。

if [ $(echo $endTime | cut -d '.' -f 2) -gt $(echo $startTime | cut -d '.' -f 2) ]; then  ... fi