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Shell 打印早于日期外壳的值_Shell_Date_Compare - Fatal编程技术网
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Shell 打印早于日期外壳的值

shell date

Shell 打印早于日期外壳的值,shell,date,compare,Shell,Date,Compare,我有以下文件： 1. something1 2015/04/15 2. something2 2015/02/06 3. something3 2015/05/09 4. something4 2015/05/15 5. something5 2015/09/20 我要打印所有早于date=2015/05/09 `awk ' $2 < $date ' file` `awk'$2

我有以下文件：

 1. something1 2015/04/15   
 2. something2 2015/02/06   
 3. something3 2015/05/09 
 4. something4 2015/05/15 
 5. something5 2015/09/20
我要打印所有早于
date=2015/05/09

`awk ' $2 < $date ' file`

`awk'$2<$date'文件`
您需要使用
-v
选项将shell变量传递给awk：

date="2015/05/09"
awk -v d="$date" '$NF < d' file

date=“2015/05/09”
awk-v d=“$date””$NF
打印前两行