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Shell中的数值比较参数分为下面6种：
| 参数 | 含义 |
| -eq | 等于 |
| -gt | 大于 |
| -ge | 大于等于 |
| -lt | 小于 |
| -le | 小于等于 |
| -ne | 不等于 |
例：
[oracle@master test]$ cat testfile
#!/bin/bash
# Using numeric test evaluations
value1=$1
value2=$2
if [[ value1 -gt value2 ]]
then
echo "The value1 is greater than value2."
elif [[ value1 -eq value2 ]]
then
echo "The value1 is equal to value2."
else
echo "The value1 is less than value2."
fi[oracle@master test]$ sh testfile 1 2
The value1 is less than value2.
[oracle@master test]$ sh testfile 1 1
The value1 is equal to value2.
[oracle@master test]$ sh testfile 2 1
The value1 is greater than value2.注意：bash shell只能处理整数，如果比较float类型，脚本会报错。
[oracle@master test]$ sh testfile 1.3 1.2
testfile: line 5: [[: 1.3: syntax error: invalid arithmetic operator (error token is ".3")
testfile: line 8: [[: 1.3: syntax error: invalid arithmetic operator (error token is ".3")
The value1 is less than value2.