grep输出放入while循环 [英] grep output placed into a while loop

问题描述

我目前已将我的grep输出配置为将所有内容放置在文件中，我正在尝试设置一些不需要创建文件的地方.

I currently have my grep output configured to place everything in a file, i'm trying to set something up where a file will not need to be created.

    func_database () {
egrep "^[0-9]" file.txt | egrep "/ON /" | sed s/-[^@]*$// > /users/home/myhome/log/test.txt
}

                                    func_database
            while read -r line ; do
                                    echo "Database $line Area a:" 
            python amgr.py status $line a
            echo ""
                        echo "Database $line Area b:" 
            python amgr.py status $line b
            echo ""
                        echo "Database $line Area c:" 
            python amgr.py status $line c
            echo ""
            done </users/home/myhome/log/test.txt

以上是我当前的设置，无论如何，我可以进行一些设置，以便在运行while; do函数之前，无需将该信息发送到test.txt文件. python脚本只会在屏幕上输出状态. test.txt文件包含以数字分隔的数字列表，例如

Above is my current setup, is there anyway i can set something up where i will not need to send this information to the test.txt file prior to running it in the while;do function. The python script will just output the status on screen. The test.txt file contains a list of numbers seperated by line for example

0
15
32
78
95

推荐答案

将您的输出直接放入while:

func_database () {
    egrep "^[0-9]" file.txt | egrep "/ON /" | sed s/-[^@]*$//
}
func_database |
while read -r line
do
    echo "Database $line Area a:" 
    python amgr.py status $line a
    echo ""
    echo "Database $line Area b:" 
    python amgr.py status $line b
    echo ""
    echo "Database $line Area c:" 
    python amgr.py status $line c
    echo ""
done

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