unix - 将查询结果存储在 unix 中的 kshell 变量中

Question

我想将查询结果存储到 k-shell 脚本中的变量中。这是到目前为止我所做的：

WeekEndingDate=`nzsql << endl | grep KEEP | sed 's/KEEP//;s/[ ]//g' 

select 'KEEP', max(Week1) from Table_Week; 

endl` 

echo Week ending date: $WeekEndingDate

MonthEndingDate=`nzsql << endl | grep KEEP | sed 's/KEEP//;s/[ ]//g' 

select 'KEEP', max(Month1) from Table_Week; 

endl`

echo Month ending date: $MonthEndingDate

当我运行它时的结果是：

Week ending date: |2013060801 

Month ending date: |2013060804

有一个带有前缀的管道。我只需要没有管道的结果：

Week ending date: 2013060801 

Month ending date: 2013060804

请帮我解决一下这个。

谢谢。

Answer 1

尝试这个：

WeekEndingDate=`nzsql -A -t -c "select max(Week1) from Table_Week"`
echo Week ending date: ${WeekEndingDate}

MonthEndingDate=`nzsql -A -t -c "select max(Month1) from Table_Week"`
echo Month ending date: ${MonthEndingDate}

您在 sql 查询中添加“KEEP”，然后将其从输出中删除，因此首先添加它是没有意义的。您可以尝试以下方法，看看是否有帮助：

WeekEndingDate=`nzsql << endl
set pagesize 0 feedback off verify off heading off echo off
select trim(max(Week1)) from Table_Week; 
endl` 

echo Week ending date: ${WeekEndingDate}

MonthEndingDate=`nzsql << endl
set pagesize 0 feedback off verify off heading off echo off
select trim(max(Month1)) from Table_Week;
endl`

echo Month ending date: ${MonthEndingDate}